Home / 77,543.12-116,217.12-42,003.08

Finding the Fourth Proportional to 77,543.12, 116,217.12 and 42,003.08

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Solution

The fourth proportional to 77,543.12, 116,217.12 and 42,003.08 is: 62,951.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,543.12 : 116,217.12 = 42,003.08 : x
  2. Step 2: Convert to fraction form
    77,543.12/116,217.12 = 42,003.08/x
  3. Step 3: Cross multiply
    77,543.12x = 116,217.12 × 42,003.08
  4. Step 4: Simplify right side
    77,543.12x = 4,881,476,988.73
  5. Step 5: Solve for x
    x = 4,881,476,988.73/77,543.12
  6. Step 6: Final answer
    x = 62,951.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.