Home / 59,919.78-89,867.36-28,316.40

Finding the Fourth Proportional to 59,919.78, 89,867.36 and 28,316.40

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Solution

The fourth proportional to 59,919.78, 89,867.36 and 28,316.40 is: 42,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,919.78 : 89,867.36 = 28,316.40 : x
  2. Step 2: Convert to fraction form
    59,919.78/89,867.36 = 28,316.40/x
  3. Step 3: Cross multiply
    59,919.78x = 89,867.36 × 28,316.40
  4. Step 4: Simplify right side
    59,919.78x = 2,544,720,112.70
  5. Step 5: Solve for x
    x = 2,544,720,112.70/59,919.78
  6. Step 6: Final answer
    x = 42,468.78

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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.