Home / 79,022.64-109,047.40-45,039.12

Finding the Fourth Proportional to 79,022.64, 109,047.40 and 45,039.12

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Solution

The fourth proportional to 79,022.64, 109,047.40 and 45,039.12 is: 62,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,022.64 : 109,047.40 = 45,039.12 : x
  2. Step 2: Convert to fraction form
    79,022.64/109,047.40 = 45,039.12/x
  3. Step 3: Cross multiply
    79,022.64x = 109,047.40 × 45,039.12
  4. Step 4: Simplify right side
    79,022.64x = 4,911,398,934.29
  5. Step 5: Solve for x
    x = 4,911,398,934.29/79,022.64
  6. Step 6: Final answer
    x = 62,151.80

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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.