Home / 65,742.20-98,618.76-28,303.20

Finding the Fourth Proportional to 65,742.20, 98,618.76 and 28,303.20

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Solution

The fourth proportional to 65,742.20, 98,618.76 and 28,303.20 is: 42,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,742.20 : 98,618.76 = 28,303.20 : x
  2. Step 2: Convert to fraction form
    65,742.20/98,618.76 = 28,303.20/x
  3. Step 3: Cross multiply
    65,742.20x = 98,618.76 × 28,303.20
  4. Step 4: Simplify right side
    65,742.20x = 2,791,226,488.03
  5. Step 5: Solve for x
    x = 2,791,226,488.03/65,742.20
  6. Step 6: Final answer
    x = 42,457.15

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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.