Home / 44,078.76-66,068.88-19,139.70

Finding the Fourth Proportional to 44,078.76, 66,068.88 and 19,139.70

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Solution

The fourth proportional to 44,078.76, 66,068.88 and 19,139.70 is: 28,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,078.76 : 66,068.88 = 19,139.70 : x
  2. Step 2: Convert to fraction form
    44,078.76/66,068.88 = 19,139.70/x
  3. Step 3: Cross multiply
    44,078.76x = 66,068.88 × 19,139.70
  4. Step 4: Simplify right side
    44,078.76x = 1,264,538,542.54
  5. Step 5: Solve for x
    x = 1,264,538,542.54/44,078.76
  6. Step 6: Final answer
    x = 28,688.16

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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.