Home / 66,343.78-91,547.17-39,482.56

Finding the Fourth Proportional to 66,343.78, 91,547.17 and 39,482.56

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Solution

The fourth proportional to 66,343.78, 91,547.17 and 39,482.56 is: 54,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,343.78 : 91,547.17 = 39,482.56 : x
  2. Step 2: Convert to fraction form
    66,343.78/91,547.17 = 39,482.56/x
  3. Step 3: Cross multiply
    66,343.78x = 91,547.17 × 39,482.56
  4. Step 4: Simplify right side
    66,343.78x = 3,614,516,632.36
  5. Step 5: Solve for x
    x = 3,614,516,632.36/66,343.78
  6. Step 6: Final answer
    x = 54,481.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.