Home / 79,079.01-109,130.40-43,272.15

Finding the Fourth Proportional to 79,079.01, 109,130.40 and 43,272.15

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Solution

The fourth proportional to 79,079.01, 109,130.40 and 43,272.15 is: 59,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,079.01 : 109,130.40 = 43,272.15 : x
  2. Step 2: Convert to fraction form
    79,079.01/109,130.40 = 43,272.15/x
  3. Step 3: Cross multiply
    79,079.01x = 109,130.40 × 43,272.15
  4. Step 4: Simplify right side
    79,079.01x = 4,722,307,038.36
  5. Step 5: Solve for x
    x = 4,722,307,038.36/79,079.01
  6. Step 6: Final answer
    x = 59,716.31

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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.