Home / 65,072.64-89,799.12-39,569.76

Finding the Fourth Proportional to 65,072.64, 89,799.12 and 39,569.76

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Solution

The fourth proportional to 65,072.64, 89,799.12 and 39,569.76 is: 54,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,072.64 : 89,799.12 = 39,569.76 : x
  2. Step 2: Convert to fraction form
    65,072.64/89,799.12 = 39,569.76/x
  3. Step 3: Cross multiply
    65,072.64x = 89,799.12 × 39,569.76
  4. Step 4: Simplify right side
    65,072.64x = 3,553,329,626.61
  5. Step 5: Solve for x
    x = 3,553,329,626.61/65,072.64
  6. Step 6: Final answer
    x = 54,605.59

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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.