Home / 72,214.30-108,385.45-42,595.10

Finding the Fourth Proportional to 72,214.30, 108,385.45 and 42,595.10

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Solution

The fourth proportional to 72,214.30, 108,385.45 and 42,595.10 is: 63,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.30 : 108,385.45 = 42,595.10 : x
  2. Step 2: Convert to fraction form
    72,214.30/108,385.45 = 42,595.10/x
  3. Step 3: Cross multiply
    72,214.30x = 108,385.45 × 42,595.10
  4. Step 4: Simplify right side
    72,214.30x = 4,616,689,081.30
  5. Step 5: Solve for x
    x = 4,616,689,081.30/72,214.30
  6. Step 6: Final answer
    x = 63,930.40

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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.