Home / 98,564.40-147,868.20-39,385.20

Finding the Fourth Proportional to 98,564.40, 147,868.20 and 39,385.20

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Solution

The fourth proportional to 98,564.40, 147,868.20 and 39,385.20 is: 59,086.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,564.40 : 147,868.20 = 39,385.20 : x
  2. Step 2: Convert to fraction form
    98,564.40/147,868.20 = 39,385.20/x
  3. Step 3: Cross multiply
    98,564.40x = 147,868.20 × 39,385.20
  4. Step 4: Simplify right side
    98,564.40x = 5,823,818,630.64
  5. Step 5: Solve for x
    x = 5,823,818,630.64/98,564.40
  6. Step 6: Final answer
    x = 59,086.43

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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.