Home / 56,500.91-77,968.25-31,006.86

Finding the Fourth Proportional to 56,500.91, 77,968.25 and 31,006.86

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Solution

The fourth proportional to 56,500.91, 77,968.25 and 31,006.86 is: 42,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,500.91 : 77,968.25 = 31,006.86 : x
  2. Step 2: Convert to fraction form
    56,500.91/77,968.25 = 31,006.86/x
  3. Step 3: Cross multiply
    56,500.91x = 77,968.25 × 31,006.86
  4. Step 4: Simplify right side
    56,500.91x = 2,417,550,457.16
  5. Step 5: Solve for x
    x = 2,417,550,457.16/56,500.91
  6. Step 6: Final answer
    x = 42,787.82

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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.