Home / 92,947.92-128,279.07-55,222.20

Finding the Fourth Proportional to 92,947.92, 128,279.07 and 55,222.20

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Solution

The fourth proportional to 92,947.92, 128,279.07 and 55,222.20 is: 76,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,947.92 : 128,279.07 = 55,222.20 : x
  2. Step 2: Convert to fraction form
    92,947.92/128,279.07 = 55,222.20/x
  3. Step 3: Cross multiply
    92,947.92x = 128,279.07 × 55,222.20
  4. Step 4: Simplify right side
    92,947.92x = 7,083,852,459.35
  5. Step 5: Solve for x
    x = 7,083,852,459.35/92,947.92
  6. Step 6: Final answer
    x = 76,213.14

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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.