Home / 45,112.12-62,282.98-28,985.96

Finding the Fourth Proportional to 45,112.12, 62,282.98 and 28,985.96

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Solution

The fourth proportional to 45,112.12, 62,282.98 and 28,985.96 is: 40,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,112.12 : 62,282.98 = 28,985.96 : x
  2. Step 2: Convert to fraction form
    45,112.12/62,282.98 = 28,985.96/x
  3. Step 3: Cross multiply
    45,112.12x = 62,282.98 × 28,985.96
  4. Step 4: Simplify right side
    45,112.12x = 1,805,331,966.96
  5. Step 5: Solve for x
    x = 1,805,331,966.96/45,112.12
  6. Step 6: Final answer
    x = 40,018.78

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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.