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Finding the Fourth Proportional to 60,854.76, 91,281.13 and 20,901.51

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Solution

The fourth proportional to 60,854.76, 91,281.13 and 20,901.51 is: 31,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,854.76 : 91,281.13 = 20,901.51 : x
  2. Step 2: Convert to fraction form
    60,854.76/91,281.13 = 20,901.51/x
  3. Step 3: Cross multiply
    60,854.76x = 91,281.13 × 20,901.51
  4. Step 4: Simplify right side
    60,854.76x = 1,907,913,399.25
  5. Step 5: Solve for x
    x = 1,907,913,399.25/60,854.76
  6. Step 6: Final answer
    x = 31,351.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.