Home / 42,988.62-64,473.28-18,056.82

Finding the Fourth Proportional to 42,988.62, 64,473.28 and 18,056.82

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Solution

The fourth proportional to 42,988.62, 64,473.28 and 18,056.82 is: 27,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,988.62 : 64,473.28 = 18,056.82 : x
  2. Step 2: Convert to fraction form
    42,988.62/64,473.28 = 18,056.82/x
  3. Step 3: Cross multiply
    42,988.62x = 64,473.28 × 18,056.82
  4. Step 4: Simplify right side
    42,988.62x = 1,164,182,366.63
  5. Step 5: Solve for x
    x = 1,164,182,366.63/42,988.62
  6. Step 6: Final answer
    x = 27,081.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.