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Finding the Fourth Proportional to 60,776.92, 91,182.12 and 21,328.84

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Solution

The fourth proportional to 60,776.92, 91,182.12 and 21,328.84 is: 31,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,776.92 : 91,182.12 = 21,328.84 : x
  2. Step 2: Convert to fraction form
    60,776.92/91,182.12 = 21,328.84/x
  3. Step 3: Cross multiply
    60,776.92x = 91,182.12 × 21,328.84
  4. Step 4: Simplify right side
    60,776.92x = 1,944,808,848.34
  5. Step 5: Solve for x
    x = 1,944,808,848.34/60,776.92
  6. Step 6: Final answer
    x = 31,999.13

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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.