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Finding the Fourth Proportional to 94,191.60, 129,980.16 and 51,750.72

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Solution

The fourth proportional to 94,191.60, 129,980.16 and 51,750.72 is: 71,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,191.60 : 129,980.16 = 51,750.72 : x
  2. Step 2: Convert to fraction form
    94,191.60/129,980.16 = 51,750.72/x
  3. Step 3: Cross multiply
    94,191.60x = 129,980.16 × 51,750.72
  4. Step 4: Simplify right side
    94,191.60x = 6,726,566,865.72
  5. Step 5: Solve for x
    x = 6,726,566,865.72/94,191.60
  6. Step 6: Final answer
    x = 71,413.66

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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.