Home / 55,861.52-77,085.68-30,711.04

Finding the Fourth Proportional to 55,861.52, 77,085.68 and 30,711.04

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Solution

The fourth proportional to 55,861.52, 77,085.68 and 30,711.04 is: 42,379.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,861.52 : 77,085.68 = 30,711.04 : x
  2. Step 2: Convert to fraction form
    55,861.52/77,085.68 = 30,711.04/x
  3. Step 3: Cross multiply
    55,861.52x = 77,085.68 × 30,711.04
  4. Step 4: Simplify right side
    55,861.52x = 2,367,381,401.91
  5. Step 5: Solve for x
    x = 2,367,381,401.91/55,861.52
  6. Step 6: Final answer
    x = 42,379.47

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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.