Home / 90,006.93-124,209.05-49,720.50

Finding the Fourth Proportional to 90,006.93, 124,209.05 and 49,720.50

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Solution

The fourth proportional to 90,006.93, 124,209.05 and 49,720.50 is: 68,614.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,006.93 : 124,209.05 = 49,720.50 : x
  2. Step 2: Convert to fraction form
    90,006.93/124,209.05 = 49,720.50/x
  3. Step 3: Cross multiply
    90,006.93x = 124,209.05 × 49,720.50
  4. Step 4: Simplify right side
    90,006.93x = 6,175,735,821.92
  5. Step 5: Solve for x
    x = 6,175,735,821.92/90,006.93
  6. Step 6: Final answer
    x = 68,614.00

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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.