Home / 42,215.04-63,301.12-14,125.12

Finding the Fourth Proportional to 42,215.04, 63,301.12 and 14,125.12

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Solution

The fourth proportional to 42,215.04, 63,301.12 and 14,125.12 is: 21,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,215.04 : 63,301.12 = 14,125.12 : x
  2. Step 2: Convert to fraction form
    42,215.04/63,301.12 = 14,125.12/x
  3. Step 3: Cross multiply
    42,215.04x = 63,301.12 × 14,125.12
  4. Step 4: Simplify right side
    42,215.04x = 894,135,916.13
  5. Step 5: Solve for x
    x = 894,135,916.13/42,215.04
  6. Step 6: Final answer
    x = 21,180.51

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1.5x scale

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.