Home / 65,868.04-98,731.26-28,445.80

Finding the Fourth Proportional to 65,868.04, 98,731.26 and 28,445.80

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Solution

The fourth proportional to 65,868.04, 98,731.26 and 28,445.80 is: 42,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,868.04 : 98,731.26 = 28,445.80 : x
  2. Step 2: Convert to fraction form
    65,868.04/98,731.26 = 28,445.80/x
  3. Step 3: Cross multiply
    65,868.04x = 98,731.26 × 28,445.80
  4. Step 4: Simplify right side
    65,868.04x = 2,808,489,675.71
  5. Step 5: Solve for x
    x = 2,808,489,675.71/65,868.04
  6. Step 6: Final answer
    x = 42,638.12

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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.