Home / 70,787.06-97,681.11-42,105.14

Finding the Fourth Proportional to 70,787.06, 97,681.11 and 42,105.14

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Solution

The fourth proportional to 70,787.06, 97,681.11 and 42,105.14 is: 58,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.06 : 97,681.11 = 42,105.14 : x
  2. Step 2: Convert to fraction form
    70,787.06/97,681.11 = 42,105.14/x
  3. Step 3: Cross multiply
    70,787.06x = 97,681.11 × 42,105.14
  4. Step 4: Simplify right side
    70,787.06x = 4,112,876,811.91
  5. Step 5: Solve for x
    x = 4,112,876,811.91/70,787.06
  6. Step 6: Final answer
    x = 58,102.10

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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.