Home / 48,289.40-72,434.10-40,999.40

Finding the Fourth Proportional to 48,289.40, 72,434.10 and 40,999.40

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Solution

The fourth proportional to 48,289.40, 72,434.10 and 40,999.40 is: 61,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,289.40 : 72,434.10 = 40,999.40 : x
  2. Step 2: Convert to fraction form
    48,289.40/72,434.10 = 40,999.40/x
  3. Step 3: Cross multiply
    48,289.40x = 72,434.10 × 40,999.40
  4. Step 4: Simplify right side
    48,289.40x = 2,969,754,639.54
  5. Step 5: Solve for x
    x = 2,969,754,639.54/48,289.40
  6. Step 6: Final answer
    x = 61,499.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.