Home / 70,845.29-97,737.15-42,159.21

Finding the Fourth Proportional to 70,845.29, 97,737.15 and 42,159.21

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Solution

The fourth proportional to 70,845.29, 97,737.15 and 42,159.21 is: 58,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,845.29 : 97,737.15 = 42,159.21 : x
  2. Step 2: Convert to fraction form
    70,845.29/97,737.15 = 42,159.21/x
  3. Step 3: Cross multiply
    70,845.29x = 97,737.15 × 42,159.21
  4. Step 4: Simplify right side
    70,845.29x = 4,120,521,031.65
  5. Step 5: Solve for x
    x = 4,120,521,031.65/70,845.29
  6. Step 6: Final answer
    x = 58,162.25

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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.