Home / 79,444.16-109,621.92-47,605.76

Finding the Fourth Proportional to 79,444.16, 109,621.92 and 47,605.76

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Solution

The fourth proportional to 79,444.16, 109,621.92 and 47,605.76 is: 65,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,444.16 : 109,621.92 = 47,605.76 : x
  2. Step 2: Convert to fraction form
    79,444.16/109,621.92 = 47,605.76/x
  3. Step 3: Cross multiply
    79,444.16x = 109,621.92 × 47,605.76
  4. Step 4: Simplify right side
    79,444.16x = 5,218,634,814.26
  5. Step 5: Solve for x
    x = 5,218,634,814.26/79,444.16
  6. Step 6: Final answer
    x = 65,689.34

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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.