Home / 51,689.14-77,885.42-42,534.48

Finding the Fourth Proportional to 51,689.14, 77,885.42 and 42,534.48

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Solution

The fourth proportional to 51,689.14, 77,885.42 and 42,534.48 is: 64,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,689.14 : 77,885.42 = 42,534.48 : x
  2. Step 2: Convert to fraction form
    51,689.14/77,885.42 = 42,534.48/x
  3. Step 3: Cross multiply
    51,689.14x = 77,885.42 × 42,534.48
  4. Step 4: Simplify right side
    51,689.14x = 3,312,815,839.28
  5. Step 5: Solve for x
    x = 3,312,815,839.28/51,689.14
  6. Step 6: Final answer
    x = 64,091.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.