Home / 67,451.15-93,085.60-38,780.11

Finding the Fourth Proportional to 67,451.15, 93,085.60 and 38,780.11

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Solution

The fourth proportional to 67,451.15, 93,085.60 and 38,780.11 is: 53,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,451.15 : 93,085.60 = 38,780.11 : x
  2. Step 2: Convert to fraction form
    67,451.15/93,085.60 = 38,780.11/x
  3. Step 3: Cross multiply
    67,451.15x = 93,085.60 × 38,780.11
  4. Step 4: Simplify right side
    67,451.15x = 3,609,869,477.75
  5. Step 5: Solve for x
    x = 3,609,869,477.75/67,451.15
  6. Step 6: Final answer
    x = 53,518.28

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1.5x scale

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.