Home / 66,421.90-99,659.55-26,982.10

Finding the Fourth Proportional to 66,421.90, 99,659.55 and 26,982.10

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Solution

The fourth proportional to 66,421.90, 99,659.55 and 26,982.10 is: 40,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421.90 : 99,659.55 = 26,982.10 : x
  2. Step 2: Convert to fraction form
    66,421.90/99,659.55 = 26,982.10/x
  3. Step 3: Cross multiply
    66,421.90x = 99,659.55 × 26,982.10
  4. Step 4: Simplify right side
    66,421.90x = 2,689,023,944.06
  5. Step 5: Solve for x
    x = 2,689,023,944.06/66,421.90
  6. Step 6: Final answer
    x = 40,484.00

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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.