Home / 115,031.13-172,618.40-43,960.11

Finding the Fourth Proportional to 115,031.13, 172,618.40 and 43,960.11

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Solution

The fourth proportional to 115,031.13, 172,618.40 and 43,960.11 is: 65,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,031.13 : 172,618.40 = 43,960.11 : x
  2. Step 2: Convert to fraction form
    115,031.13/172,618.40 = 43,960.11/x
  3. Step 3: Cross multiply
    115,031.13x = 172,618.40 × 43,960.11
  4. Step 4: Simplify right side
    115,031.13x = 7,588,323,852.02
  5. Step 5: Solve for x
    x = 7,588,323,852.02/115,031.13
  6. Step 6: Final answer
    x = 65,967.57

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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.