Home / 90,101.59-124,335.17-49,813.00

Finding the Fourth Proportional to 90,101.59, 124,335.17 and 49,813.00

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Solution

The fourth proportional to 90,101.59, 124,335.17 and 49,813.00 is: 68,739.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,101.59 : 124,335.17 = 49,813.00 : x
  2. Step 2: Convert to fraction form
    90,101.59/124,335.17 = 49,813.00/x
  3. Step 3: Cross multiply
    90,101.59x = 124,335.17 × 49,813.00
  4. Step 4: Simplify right side
    90,101.59x = 6,193,507,792.32
  5. Step 5: Solve for x
    x = 6,193,507,792.32/90,101.59
  6. Step 6: Final answer
    x = 68,739.16

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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.