Home / 89,332.20-133,779.60-42,530.40

Finding the Fourth Proportional to 89,332.20, 133,779.60 and 42,530.40

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Solution

The fourth proportional to 89,332.20, 133,779.60 and 42,530.40 is: 63,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,332.20 : 133,779.60 = 42,530.40 : x
  2. Step 2: Convert to fraction form
    89,332.20/133,779.60 = 42,530.40/x
  3. Step 3: Cross multiply
    89,332.20x = 133,779.60 × 42,530.40
  4. Step 4: Simplify right side
    89,332.20x = 5,689,699,899.84
  5. Step 5: Solve for x
    x = 5,689,699,899.84/89,332.20
  6. Step 6: Final answer
    x = 63,691.48

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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.