Home / 65,818.20-98,727.30-39,509.40

Finding the Fourth Proportional to 65,818.20, 98,727.30 and 39,509.40

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Solution

The fourth proportional to 65,818.20, 98,727.30 and 39,509.40 is: 59,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,818.20 : 98,727.30 = 39,509.40 : x
  2. Step 2: Convert to fraction form
    65,818.20/98,727.30 = 39,509.40/x
  3. Step 3: Cross multiply
    65,818.20x = 98,727.30 × 39,509.40
  4. Step 4: Simplify right side
    65,818.20x = 3,900,656,386.62
  5. Step 5: Solve for x
    x = 3,900,656,386.62/65,818.20
  6. Step 6: Final answer
    x = 59,264.10

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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.