Home / 66,254.20-99,386.10-39,902.20

Finding the Fourth Proportional to 66,254.20, 99,386.10 and 39,902.20

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Solution

The fourth proportional to 66,254.20, 99,386.10 and 39,902.20 is: 59,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254.20 : 99,386.10 = 39,902.20 : x
  2. Step 2: Convert to fraction form
    66,254.20/99,386.10 = 39,902.20/x
  3. Step 3: Cross multiply
    66,254.20x = 99,386.10 × 39,902.20
  4. Step 4: Simplify right side
    66,254.20x = 3,965,724,039.42
  5. Step 5: Solve for x
    x = 3,965,724,039.42/66,254.20
  6. Step 6: Final answer
    x = 59,856.19

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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.