Home / 91,000.12-136,500.54-27,820.01

Finding the Fourth Proportional to 91,000.12, 136,500.54 and 27,820.01

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Solution

The fourth proportional to 91,000.12, 136,500.54 and 27,820.01 is: 41,730.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,000.12 : 136,500.54 = 27,820.01 : x
  2. Step 2: Convert to fraction form
    91,000.12/136,500.54 = 27,820.01/x
  3. Step 3: Cross multiply
    91,000.12x = 136,500.54 × 27,820.01
  4. Step 4: Simplify right side
    91,000.12x = 3,797,445,600.98
  5. Step 5: Solve for x
    x = 3,797,445,600.98/91,000.12
  6. Step 6: Final answer
    x = 41,730.12

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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.