Home / 67,670.63-93,387.68-38,988.05

Finding the Fourth Proportional to 67,670.63, 93,387.68 and 38,988.05

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Solution

The fourth proportional to 67,670.63, 93,387.68 and 38,988.05 is: 53,804.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,670.63 : 93,387.68 = 38,988.05 : x
  2. Step 2: Convert to fraction form
    67,670.63/93,387.68 = 38,988.05/x
  3. Step 3: Cross multiply
    67,670.63x = 93,387.68 × 38,988.05
  4. Step 4: Simplify right side
    67,670.63x = 3,641,002,875.35
  5. Step 5: Solve for x
    x = 3,641,002,875.35/67,670.63
  6. Step 6: Final answer
    x = 53,804.78

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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.