Home / 88,178.56-121,689.27-49,937.51

Finding the Fourth Proportional to 88,178.56, 121,689.27 and 49,937.51

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Solution

The fourth proportional to 88,178.56, 121,689.27 and 49,937.51 is: 68,915.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,178.56 : 121,689.27 = 49,937.51 : x
  2. Step 2: Convert to fraction form
    88,178.56/121,689.27 = 49,937.51/x
  3. Step 3: Cross multiply
    88,178.56x = 121,689.27 × 49,937.51
  4. Step 4: Simplify right side
    88,178.56x = 6,076,859,441.74
  5. Step 5: Solve for x
    x = 6,076,859,441.74/88,178.56
  6. Step 6: Final answer
    x = 68,915.39

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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.