Home / 90,005.40-124,207.50-49,170.08

Finding the Fourth Proportional to 90,005.40, 124,207.50 and 49,170.08

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Solution

The fourth proportional to 90,005.40, 124,207.50 and 49,170.08 is: 67,854.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,005.40 : 124,207.50 = 49,170.08 : x
  2. Step 2: Convert to fraction form
    90,005.40/124,207.50 = 49,170.08/x
  3. Step 3: Cross multiply
    90,005.40x = 124,207.50 × 49,170.08
  4. Step 4: Simplify right side
    90,005.40x = 6,107,292,711.60
  5. Step 5: Solve for x
    x = 6,107,292,711.60/90,005.40
  6. Step 6: Final answer
    x = 67,854.74

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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.