Home / 90,100.68-124,346.61-52,372.50

Finding the Fourth Proportional to 90,100.68, 124,346.61 and 52,372.50

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Solution

The fourth proportional to 90,100.68, 124,346.61 and 52,372.50 is: 72,278.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.68 : 124,346.61 = 52,372.50 : x
  2. Step 2: Convert to fraction form
    90,100.68/124,346.61 = 52,372.50/x
  3. Step 3: Cross multiply
    90,100.68x = 124,346.61 × 52,372.50
  4. Step 4: Simplify right side
    90,100.68x = 6,512,342,832.23
  5. Step 5: Solve for x
    x = 6,512,342,832.23/90,100.68
  6. Step 6: Final answer
    x = 72,278.51

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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.