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Finding the Fourth Proportional to 92,998.80, 139,487.40 and 26,449.20

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Solution

The fourth proportional to 92,998.80, 139,487.40 and 26,449.20 is: 39,670.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,998.80 : 139,487.40 = 26,449.20 : x
  2. Step 2: Convert to fraction form
    92,998.80/139,487.40 = 26,449.20/x
  3. Step 3: Cross multiply
    92,998.80x = 139,487.40 × 26,449.20
  4. Step 4: Simplify right side
    92,998.80x = 3,689,330,140.08
  5. Step 5: Solve for x
    x = 3,689,330,140.08/92,998.80
  6. Step 6: Final answer
    x = 39,670.73

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1.5x scale

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.