Home / 90,017.04-124,221.78-49,731.24

Finding the Fourth Proportional to 90,017.04, 124,221.78 and 49,731.24

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Solution

The fourth proportional to 90,017.04, 124,221.78 and 49,731.24 is: 68,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,017.04 : 124,221.78 = 49,731.24 : x
  2. Step 2: Convert to fraction form
    90,017.04/124,221.78 = 49,731.24/x
  3. Step 3: Cross multiply
    90,017.04x = 124,221.78 × 49,731.24
  4. Step 4: Simplify right side
    90,017.04x = 6,177,703,154.41
  5. Step 5: Solve for x
    x = 6,177,703,154.41/90,017.04
  6. Step 6: Final answer
    x = 68,628.15

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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.