Home / 74,829.12-112,210.65-28,049.19

Finding the Fourth Proportional to 74,829.12, 112,210.65 and 28,049.19

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Solution

The fourth proportional to 74,829.12, 112,210.65 and 28,049.19 is: 42,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,829.12 : 112,210.65 = 28,049.19 : x
  2. Step 2: Convert to fraction form
    74,829.12/112,210.65 = 28,049.19/x
  3. Step 3: Cross multiply
    74,829.12x = 112,210.65 × 28,049.19
  4. Step 4: Simplify right side
    74,829.12x = 3,147,417,841.87
  5. Step 5: Solve for x
    x = 3,147,417,841.87/74,829.12
  6. Step 6: Final answer
    x = 42,061.40

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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.