Home / 99,423.02-137,209.68-56,984.28

Finding the Fourth Proportional to 99,423.02, 137,209.68 and 56,984.28

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Solution

The fourth proportional to 99,423.02, 137,209.68 and 56,984.28 is: 78,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,423.02 : 137,209.68 = 56,984.28 : x
  2. Step 2: Convert to fraction form
    99,423.02/137,209.68 = 56,984.28/x
  3. Step 3: Cross multiply
    99,423.02x = 137,209.68 × 56,984.28
  4. Step 4: Simplify right side
    99,423.02x = 7,818,794,823.83
  5. Step 5: Solve for x
    x = 7,818,794,823.83/99,423.02
  6. Step 6: Final answer
    x = 78,641.70

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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.