Home / 81,413.28-112,352.16-45,601.44

Finding the Fourth Proportional to 81,413.28, 112,352.16 and 45,601.44

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Solution

The fourth proportional to 81,413.28, 112,352.16 and 45,601.44 is: 62,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,413.28 : 112,352.16 = 45,601.44 : x
  2. Step 2: Convert to fraction form
    81,413.28/112,352.16 = 45,601.44/x
  3. Step 3: Cross multiply
    81,413.28x = 112,352.16 × 45,601.44
  4. Step 4: Simplify right side
    81,413.28x = 5,123,420,283.11
  5. Step 5: Solve for x
    x = 5,123,420,283.11/81,413.28
  6. Step 6: Final answer
    x = 62,931.01

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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.