Home / 99,439.02-137,225.88-54,117.18

Finding the Fourth Proportional to 99,439.02, 137,225.88 and 54,117.18

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Solution

The fourth proportional to 99,439.02, 137,225.88 and 54,117.18 is: 74,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,439.02 : 137,225.88 = 54,117.18 : x
  2. Step 2: Convert to fraction form
    99,439.02/137,225.88 = 54,117.18/x
  3. Step 3: Cross multiply
    99,439.02x = 137,225.88 × 54,117.18
  4. Step 4: Simplify right side
    99,439.02x = 7,426,277,648.62
  5. Step 5: Solve for x
    x = 7,426,277,648.62/99,439.02
  6. Step 6: Final answer
    x = 74,681.73

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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.