Home / 90,063.15-124,302.27-60,978.33

Finding the Fourth Proportional to 90,063.15, 124,302.27 and 60,978.33

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Solution

The fourth proportional to 90,063.15, 124,302.27 and 60,978.33 is: 84,160.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,063.15 : 124,302.27 = 60,978.33 : x
  2. Step 2: Convert to fraction form
    90,063.15/124,302.27 = 60,978.33/x
  3. Step 3: Cross multiply
    90,063.15x = 124,302.27 × 60,978.33
  4. Step 4: Simplify right side
    90,063.15x = 7,579,743,913.41
  5. Step 5: Solve for x
    x = 7,579,743,913.41/90,063.15
  6. Step 6: Final answer
    x = 84,160.32

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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.