Home / 90,439.26-124,814.07-52,712.70

Finding the Fourth Proportional to 90,439.26, 124,814.07 and 52,712.70

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Solution

The fourth proportional to 90,439.26, 124,814.07 and 52,712.70 is: 72,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,439.26 : 124,814.07 = 52,712.70 : x
  2. Step 2: Convert to fraction form
    90,439.26/124,814.07 = 52,712.70/x
  3. Step 3: Cross multiply
    90,439.26x = 124,814.07 × 52,712.70
  4. Step 4: Simplify right side
    90,439.26x = 6,579,286,627.69
  5. Step 5: Solve for x
    x = 6,579,286,627.69/90,439.26
  6. Step 6: Final answer
    x = 72,748.13

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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.