Home / 64,839.12-89,456.04-52,881.68

Finding the Fourth Proportional to 64,839.12, 89,456.04 and 52,881.68

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Solution

The fourth proportional to 64,839.12, 89,456.04 and 52,881.68 is: 72,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,839.12 : 89,456.04 = 52,881.68 : x
  2. Step 2: Convert to fraction form
    64,839.12/89,456.04 = 52,881.68/x
  3. Step 3: Cross multiply
    64,839.12x = 89,456.04 × 52,881.68
  4. Step 4: Simplify right side
    64,839.12x = 4,730,585,681.35
  5. Step 5: Solve for x
    x = 4,730,585,681.35/64,839.12
  6. Step 6: Final answer
    x = 72,958.82

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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.