Home / 77,432.76-116,047.08-30,660.12

Finding the Fourth Proportional to 77,432.76, 116,047.08 and 30,660.12

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Solution

The fourth proportional to 77,432.76, 116,047.08 and 30,660.12 is: 45,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,432.76 : 116,047.08 = 30,660.12 : x
  2. Step 2: Convert to fraction form
    77,432.76/116,047.08 = 30,660.12/x
  3. Step 3: Cross multiply
    77,432.76x = 116,047.08 × 30,660.12
  4. Step 4: Simplify right side
    77,432.76x = 3,558,017,398.45
  5. Step 5: Solve for x
    x = 3,558,017,398.45/77,432.76
  6. Step 6: Final answer
    x = 45,949.77

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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.