Home / 56,487.36-77,951.52-31,336.32

Finding the Fourth Proportional to 56,487.36, 77,951.52 and 31,336.32

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Solution

The fourth proportional to 56,487.36, 77,951.52 and 31,336.32 is: 43,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,487.36 : 77,951.52 = 31,336.32 : x
  2. Step 2: Convert to fraction form
    56,487.36/77,951.52 = 31,336.32/x
  3. Step 3: Cross multiply
    56,487.36x = 77,951.52 × 31,336.32
  4. Step 4: Simplify right side
    56,487.36x = 2,442,713,775.21
  5. Step 5: Solve for x
    x = 2,442,713,775.21/56,487.36
  6. Step 6: Final answer
    x = 43,243.55

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1.5x scale

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.