Home / 89,383.52-123,303.62-57,084.20

Finding the Fourth Proportional to 89,383.52, 123,303.62 and 57,084.20

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Solution

The fourth proportional to 89,383.52, 123,303.62 and 57,084.20 is: 78,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,383.52 : 123,303.62 = 57,084.20 : x
  2. Step 2: Convert to fraction form
    89,383.52/123,303.62 = 57,084.20/x
  3. Step 3: Cross multiply
    89,383.52x = 123,303.62 × 57,084.20
  4. Step 4: Simplify right side
    89,383.52x = 7,038,688,504.80
  5. Step 5: Solve for x
    x = 7,038,688,504.80/89,383.52
  6. Step 6: Final answer
    x = 78,747.05

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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.