Home / 88,233.04-121,780.80-54,270.72

Finding the Fourth Proportional to 88,233.04, 121,780.80 and 54,270.72

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Solution

The fourth proportional to 88,233.04, 121,780.80 and 54,270.72 is: 74,905.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,233.04 : 121,780.80 = 54,270.72 : x
  2. Step 2: Convert to fraction form
    88,233.04/121,780.80 = 54,270.72/x
  3. Step 3: Cross multiply
    88,233.04x = 121,780.80 × 54,270.72
  4. Step 4: Simplify right side
    88,233.04x = 6,609,131,698.18
  5. Step 5: Solve for x
    x = 6,609,131,698.18/88,233.04
  6. Step 6: Final answer
    x = 74,905.41

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1.5x scale

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.