Home / 56,656.64-78,177.12-32,784.32

Finding the Fourth Proportional to 56,656.64, 78,177.12 and 32,784.32

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Solution

The fourth proportional to 56,656.64, 78,177.12 and 32,784.32 is: 45,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,656.64 : 78,177.12 = 32,784.32 : x
  2. Step 2: Convert to fraction form
    56,656.64/78,177.12 = 32,784.32/x
  3. Step 3: Cross multiply
    56,656.64x = 78,177.12 × 32,784.32
  4. Step 4: Simplify right side
    56,656.64x = 2,562,983,718.76
  5. Step 5: Solve for x
    x = 2,562,983,718.76/56,656.64
  6. Step 6: Final answer
    x = 45,237.13

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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.