Home / 88,132.70-121,578.06-56,268.10

Finding the Fourth Proportional to 88,132.70, 121,578.06 and 56,268.10

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Solution

The fourth proportional to 88,132.70, 121,578.06 and 56,268.10 is: 77,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,132.70 : 121,578.06 = 56,268.10 : x
  2. Step 2: Convert to fraction form
    88,132.70/121,578.06 = 56,268.10/x
  3. Step 3: Cross multiply
    88,132.70x = 121,578.06 × 56,268.10
  4. Step 4: Simplify right side
    88,132.70x = 6,840,966,437.89
  5. Step 5: Solve for x
    x = 6,840,966,437.89/88,132.70
  6. Step 6: Final answer
    x = 77,621.21

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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.