Home / 98,421.29-147,560.42-39,239.21

Finding the Fourth Proportional to 98,421.29, 147,560.42 and 39,239.21

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Solution

The fourth proportional to 98,421.29, 147,560.42 and 39,239.21 is: 58,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,421.29 : 147,560.42 = 39,239.21 : x
  2. Step 2: Convert to fraction form
    98,421.29/147,560.42 = 39,239.21/x
  3. Step 3: Cross multiply
    98,421.29x = 147,560.42 × 39,239.21
  4. Step 4: Simplify right side
    98,421.29x = 5,790,154,111.87
  5. Step 5: Solve for x
    x = 5,790,154,111.87/98,421.29
  6. Step 6: Final answer
    x = 58,830.30

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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.