Home / 84,421.68-126,595.64-40,061.12

Finding the Fourth Proportional to 84,421.68, 126,595.64 and 40,061.12

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Solution

The fourth proportional to 84,421.68, 126,595.64 and 40,061.12 is: 60,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,421.68 : 126,595.64 = 40,061.12 : x
  2. Step 2: Convert to fraction form
    84,421.68/126,595.64 = 40,061.12/x
  3. Step 3: Cross multiply
    84,421.68x = 126,595.64 × 40,061.12
  4. Step 4: Simplify right side
    84,421.68x = 5,071,563,125.52
  5. Step 5: Solve for x
    x = 5,071,563,125.52/84,421.68
  6. Step 6: Final answer
    x = 60,074.18

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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.