Home / 56,187.76-77,539.10-31,038.88

Finding the Fourth Proportional to 56,187.76, 77,539.10 and 31,038.88

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Solution

The fourth proportional to 56,187.76, 77,539.10 and 31,038.88 is: 42,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,187.76 : 77,539.10 = 31,038.88 : x
  2. Step 2: Convert to fraction form
    56,187.76/77,539.10 = 31,038.88/x
  3. Step 3: Cross multiply
    56,187.76x = 77,539.10 × 31,038.88
  4. Step 4: Simplify right side
    56,187.76x = 2,406,726,820.21
  5. Step 5: Solve for x
    x = 2,406,726,820.21/56,187.76
  6. Step 6: Final answer
    x = 42,833.65

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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.