Home / 74,281.16-111,441.18-21,691.10

Finding the Fourth Proportional to 74,281.16, 111,441.18 and 21,691.10

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Solution

The fourth proportional to 74,281.16, 111,441.18 and 21,691.10 is: 32,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,281.16 : 111,441.18 = 21,691.10 : x
  2. Step 2: Convert to fraction form
    74,281.16/111,441.18 = 21,691.10/x
  3. Step 3: Cross multiply
    74,281.16x = 111,441.18 × 21,691.10
  4. Step 4: Simplify right side
    74,281.16x = 2,417,281,779.50
  5. Step 5: Solve for x
    x = 2,417,281,779.50/74,281.16
  6. Step 6: Final answer
    x = 32,542.33

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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.