Home / 56,207.04-77,562.40-30,708.34

Finding the Fourth Proportional to 56,207.04, 77,562.40 and 30,708.34

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Solution

The fourth proportional to 56,207.04, 77,562.40 and 30,708.34 is: 42,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,207.04 : 77,562.40 = 30,708.34 : x
  2. Step 2: Convert to fraction form
    56,207.04/77,562.40 = 30,708.34/x
  3. Step 3: Cross multiply
    56,207.04x = 77,562.40 × 30,708.34
  4. Step 4: Simplify right side
    56,207.04x = 2,381,812,550.42
  5. Step 5: Solve for x
    x = 2,381,812,550.42/56,207.04
  6. Step 6: Final answer
    x = 42,375.70

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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.