Home / 88,129.94-121,574.26-56,265.35

Finding the Fourth Proportional to 88,129.94, 121,574.26 and 56,265.35

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Solution

The fourth proportional to 88,129.94, 121,574.26 and 56,265.35 is: 77,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,129.94 : 121,574.26 = 56,265.35 : x
  2. Step 2: Convert to fraction form
    88,129.94/121,574.26 = 56,265.35/x
  3. Step 3: Cross multiply
    88,129.94x = 121,574.26 × 56,265.35
  4. Step 4: Simplify right side
    88,129.94x = 6,840,418,289.89
  5. Step 5: Solve for x
    x = 6,840,418,289.89/88,129.94
  6. Step 6: Final answer
    x = 77,617.42

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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.