Home / 66,521.28-99,478.80-49,666.08

Finding the Fourth Proportional to 66,521.28, 99,478.80 and 49,666.08

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Solution

The fourth proportional to 66,521.28, 99,478.80 and 49,666.08 is: 74,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521.28 : 99,478.80 = 49,666.08 : x
  2. Step 2: Convert to fraction form
    66,521.28/99,478.80 = 49,666.08/x
  3. Step 3: Cross multiply
    66,521.28x = 99,478.80 × 49,666.08
  4. Step 4: Simplify right side
    66,521.28x = 4,940,722,039.10
  5. Step 5: Solve for x
    x = 4,940,722,039.10/66,521.28
  6. Step 6: Final answer
    x = 74,272.80

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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.