Home / 78,888.04-108,866.10-43,077.40

Finding the Fourth Proportional to 78,888.04, 108,866.10 and 43,077.40

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Solution

The fourth proportional to 78,888.04, 108,866.10 and 43,077.40 is: 59,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888.04 : 108,866.10 = 43,077.40 : x
  2. Step 2: Convert to fraction form
    78,888.04/108,866.10 = 43,077.40/x
  3. Step 3: Cross multiply
    78,888.04x = 108,866.10 × 43,077.40
  4. Step 4: Simplify right side
    78,888.04x = 4,689,668,536.14
  5. Step 5: Solve for x
    x = 4,689,668,536.14/78,888.04
  6. Step 6: Final answer
    x = 59,447.14

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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.