Home / 84,567.65-126,802.19-31,981.23

Finding the Fourth Proportional to 84,567.65, 126,802.19 and 31,981.23

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Solution

The fourth proportional to 84,567.65, 126,802.19 and 31,981.23 is: 47,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,567.65 : 126,802.19 = 31,981.23 : x
  2. Step 2: Convert to fraction form
    84,567.65/126,802.19 = 31,981.23/x
  3. Step 3: Cross multiply
    84,567.65x = 126,802.19 × 31,981.23
  4. Step 4: Simplify right side
    84,567.65x = 4,055,290,082.85
  5. Step 5: Solve for x
    x = 4,055,290,082.85/84,567.65
  6. Step 6: Final answer
    x = 47,953.21

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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.