Home / 79,031.96-109,071.37-47,200.17

Finding the Fourth Proportional to 79,031.96, 109,071.37 and 47,200.17

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Solution

The fourth proportional to 79,031.96, 109,071.37 and 47,200.17 is: 65,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,031.96 : 109,071.37 = 47,200.17 : x
  2. Step 2: Convert to fraction form
    79,031.96/109,071.37 = 47,200.17/x
  3. Step 3: Cross multiply
    79,031.96x = 109,071.37 × 47,200.17
  4. Step 4: Simplify right side
    79,031.96x = 5,148,187,206.13
  5. Step 5: Solve for x
    x = 5,148,187,206.13/79,031.96
  6. Step 6: Final answer
    x = 65,140.57

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1.5x scale

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.