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Finding the Fourth Proportional to 101,752.62, 140,413.68 and 56,432.40

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Solution

The fourth proportional to 101,752.62, 140,413.68 and 56,432.40 is: 77,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,752.62 : 140,413.68 = 56,432.40 : x
  2. Step 2: Convert to fraction form
    101,752.62/140,413.68 = 56,432.40/x
  3. Step 3: Cross multiply
    101,752.62x = 140,413.68 × 56,432.40
  4. Step 4: Simplify right side
    101,752.62x = 7,923,880,955.23
  5. Step 5: Solve for x
    x = 7,923,880,955.23/101,752.62
  6. Step 6: Final answer
    x = 77,873.97

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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.