Home / 90,043.20-124,238.88-52,295.04

Finding the Fourth Proportional to 90,043.20, 124,238.88 and 52,295.04

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Solution

The fourth proportional to 90,043.20, 124,238.88 and 52,295.04 is: 72,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,043.20 : 124,238.88 = 52,295.04 : x
  2. Step 2: Convert to fraction form
    90,043.20/124,238.88 = 52,295.04/x
  3. Step 3: Cross multiply
    90,043.20x = 124,238.88 × 52,295.04
  4. Step 4: Simplify right side
    90,043.20x = 6,497,077,199.16
  5. Step 5: Solve for x
    x = 6,497,077,199.16/90,043.20
  6. Step 6: Final answer
    x = 72,155.11

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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.