Home / 86,528.78-129,716.02-46,569.21

Finding the Fourth Proportional to 86,528.78, 129,716.02 and 46,569.21

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Solution

The fourth proportional to 86,528.78, 129,716.02 and 46,569.21 is: 69,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,528.78 : 129,716.02 = 46,569.21 : x
  2. Step 2: Convert to fraction form
    86,528.78/129,716.02 = 46,569.21/x
  3. Step 3: Cross multiply
    86,528.78x = 129,716.02 × 46,569.21
  4. Step 4: Simplify right side
    86,528.78x = 6,040,772,575.74
  5. Step 5: Solve for x
    x = 6,040,772,575.74/86,528.78
  6. Step 6: Final answer
    x = 69,812.29

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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.