Home / 70,743.12-106,115.51-28,058.96

Finding the Fourth Proportional to 70,743.12, 106,115.51 and 28,058.96

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Solution

The fourth proportional to 70,743.12, 106,115.51 and 28,058.96 is: 42,088.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,743.12 : 106,115.51 = 28,058.96 : x
  2. Step 2: Convert to fraction form
    70,743.12/106,115.51 = 28,058.96/x
  3. Step 3: Cross multiply
    70,743.12x = 106,115.51 × 28,058.96
  4. Step 4: Simplify right side
    70,743.12x = 2,977,490,390.04
  5. Step 5: Solve for x
    x = 2,977,490,390.04/70,743.12
  6. Step 6: Final answer
    x = 42,088.76

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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.