Home / 88,167.29-121,670.42-47,880.72

Finding the Fourth Proportional to 88,167.29, 121,670.42 and 47,880.72

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Solution

The fourth proportional to 88,167.29, 121,670.42 and 47,880.72 is: 66,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,167.29 : 121,670.42 = 47,880.72 : x
  2. Step 2: Convert to fraction form
    88,167.29/121,670.42 = 47,880.72/x
  3. Step 3: Cross multiply
    88,167.29x = 121,670.42 × 47,880.72
  4. Step 4: Simplify right side
    88,167.29x = 5,825,667,072.90
  5. Step 5: Solve for x
    x = 5,825,667,072.90/88,167.29
  6. Step 6: Final answer
    x = 66,075.16

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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.