Home / 56,921.08-78,549.18-31,427.02

Finding the Fourth Proportional to 56,921.08, 78,549.18 and 31,427.02

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Solution

The fourth proportional to 56,921.08, 78,549.18 and 31,427.02 is: 43,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,921.08 : 78,549.18 = 31,427.02 : x
  2. Step 2: Convert to fraction form
    56,921.08/78,549.18 = 31,427.02/x
  3. Step 3: Cross multiply
    56,921.08x = 78,549.18 × 31,427.02
  4. Step 4: Simplify right side
    56,921.08x = 2,468,566,650.84
  5. Step 5: Solve for x
    x = 2,468,566,650.84/56,921.08
  6. Step 6: Final answer
    x = 43,368.23

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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.