Home / 79,209.04-109,309.42-45,222.16

Finding the Fourth Proportional to 79,209.04, 109,309.42 and 45,222.16

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Solution

The fourth proportional to 79,209.04, 109,309.42 and 45,222.16 is: 62,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,209.04 : 109,309.42 = 45,222.16 : x
  2. Step 2: Convert to fraction form
    79,209.04/109,309.42 = 45,222.16/x
  3. Step 3: Cross multiply
    79,209.04x = 109,309.42 × 45,222.16
  4. Step 4: Simplify right side
    79,209.04x = 4,943,208,080.75
  5. Step 5: Solve for x
    x = 4,943,208,080.75/79,209.04
  6. Step 6: Final answer
    x = 62,407.12

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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.