Home / 89,077.20-133,399.80-47,432.40

Finding the Fourth Proportional to 89,077.20, 133,399.80 and 47,432.40

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Solution

The fourth proportional to 89,077.20, 133,399.80 and 47,432.40 is: 71,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,077.20 : 133,399.80 = 47,432.40 : x
  2. Step 2: Convert to fraction form
    89,077.20/133,399.80 = 47,432.40/x
  3. Step 3: Cross multiply
    89,077.20x = 133,399.80 × 47,432.40
  4. Step 4: Simplify right side
    89,077.20x = 6,327,472,673.52
  5. Step 5: Solve for x
    x = 6,327,472,673.52/89,077.20
  6. Step 6: Final answer
    x = 71,033.58

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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.