Home / 56,285.60-77,674.28-31,135.10

Finding the Fourth Proportional to 56,285.60, 77,674.28 and 31,135.10

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Solution

The fourth proportional to 56,285.60, 77,674.28 and 31,135.10 is: 42,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,285.60 : 77,674.28 = 31,135.10 : x
  2. Step 2: Convert to fraction form
    56,285.60/77,674.28 = 31,135.10/x
  3. Step 3: Cross multiply
    56,285.60x = 77,674.28 × 31,135.10
  4. Step 4: Simplify right side
    56,285.60x = 2,418,396,358.88
  5. Step 5: Solve for x
    x = 2,418,396,358.88/56,285.60
  6. Step 6: Final answer
    x = 42,966.52

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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.