Home / 56,543,145.44-78,032,873.76-42,579,865.31

Finding the Fourth Proportional to 56,543,145.44, 78,032,873.76 and 42,579,865.31

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Solution

The fourth proportional to 56,543,145.44, 78,032,873.76 and 42,579,865.31 is: 58,762,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,543,145.44 : 78,032,873.76 = 42,579,865.31 : x
  2. Step 2: Convert to fraction form
    56,543,145.44/78,032,873.76 = 42,579,865.31/x
  3. Step 3: Cross multiply
    56,543,145.44x = 78,032,873.76 × 42,579,865.31
  4. Step 4: Simplify right side
    56,543,145.44x = 3,322,629,254,062,869
  5. Step 5: Solve for x
    x = 3,322,629,254,062,869/56,543,145.44
  6. Step 6: Final answer
    x = 58,762,724.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.