Home / 99,478.80-137,276.27-54,155.62

Finding the Fourth Proportional to 99,478.80, 137,276.27 and 54,155.62

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Solution

The fourth proportional to 99,478.80, 137,276.27 and 54,155.62 is: 74,732.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,478.80 : 137,276.27 = 54,155.62 : x
  2. Step 2: Convert to fraction form
    99,478.80/137,276.27 = 54,155.62/x
  3. Step 3: Cross multiply
    99,478.80x = 137,276.27 × 54,155.62
  4. Step 4: Simplify right side
    99,478.80x = 7,434,281,617.04
  5. Step 5: Solve for x
    x = 7,434,281,617.04/99,478.80
  6. Step 6: Final answer
    x = 74,732.32

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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.