Home / 51,459.20-71,017.12-28,800.16

Finding the Fourth Proportional to 51,459.20, 71,017.12 and 28,800.16

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Solution

The fourth proportional to 51,459.20, 71,017.12 and 28,800.16 is: 39,746.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,459.20 : 71,017.12 = 28,800.16 : x
  2. Step 2: Convert to fraction form
    51,459.20/71,017.12 = 28,800.16/x
  3. Step 3: Cross multiply
    51,459.20x = 71,017.12 × 28,800.16
  4. Step 4: Simplify right side
    51,459.20x = 2,045,304,418.74
  5. Step 5: Solve for x
    x = 2,045,304,418.74/51,459.20
  6. Step 6: Final answer
    x = 39,746.14

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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.