Home / 79,071.30-109,113.75-43,254.18

Finding the Fourth Proportional to 79,071.30, 109,113.75 and 43,254.18

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Solution

The fourth proportional to 79,071.30, 109,113.75 and 43,254.18 is: 59,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,071.30 : 109,113.75 = 43,254.18 : x
  2. Step 2: Convert to fraction form
    79,071.30/109,113.75 = 43,254.18/x
  3. Step 3: Cross multiply
    79,071.30x = 109,113.75 × 43,254.18
  4. Step 4: Simplify right side
    79,071.30x = 4,719,625,782.98
  5. Step 5: Solve for x
    x = 4,719,625,782.98/79,071.30
  6. Step 6: Final answer
    x = 59,688.23

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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.