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Finding the Fourth Proportional to 90,149.00, 124,402.50 and 49,862.63

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Solution

The fourth proportional to 90,149.00, 124,402.50 and 49,862.63 is: 68,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,149.00 : 124,402.50 = 49,862.63 : x
  2. Step 2: Convert to fraction form
    90,149.00/124,402.50 = 49,862.63/x
  3. Step 3: Cross multiply
    90,149.00x = 124,402.50 × 49,862.63
  4. Step 4: Simplify right side
    90,149.00x = 6,203,035,206.56
  5. Step 5: Solve for x
    x = 6,203,035,206.56/90,149.00
  6. Step 6: Final answer
    x = 68,808.70

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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.