Home / 67,734.08-93,518.69-42,279.21

Finding the Fourth Proportional to 67,734.08, 93,518.69 and 42,279.21

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Solution

The fourth proportional to 67,734.08, 93,518.69 and 42,279.21 is: 58,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,734.08 : 93,518.69 = 42,279.21 : x
  2. Step 2: Convert to fraction form
    67,734.08/93,518.69 = 42,279.21/x
  3. Step 3: Cross multiply
    67,734.08x = 93,518.69 × 42,279.21
  4. Step 4: Simplify right side
    67,734.08x = 3,953,896,122.04
  5. Step 5: Solve for x
    x = 3,953,896,122.04/67,734.08
  6. Step 6: Final answer
    x = 58,373.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.