Home / 66,432.90-91,569.51-57,797.13

Finding the Fourth Proportional to 66,432.90, 91,569.51 and 57,797.13

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Solution

The fourth proportional to 66,432.90, 91,569.51 and 57,797.13 is: 79,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432.90 : 91,569.51 = 57,797.13 : x
  2. Step 2: Convert to fraction form
    66,432.90/91,569.51 = 57,797.13/x
  3. Step 3: Cross multiply
    66,432.90x = 91,569.51 × 57,797.13
  4. Step 4: Simplify right side
    66,432.90x = 5,292,454,873.51
  5. Step 5: Solve for x
    x = 5,292,454,873.51/66,432.90
  6. Step 6: Final answer
    x = 79,666.17

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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.