Home / 79,521.09-119,281.56-20,356.68

Finding the Fourth Proportional to 79,521.09, 119,281.56 and 20,356.68

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Solution

The fourth proportional to 79,521.09, 119,281.56 and 20,356.68 is: 30,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,521.09 : 119,281.56 = 20,356.68 : x
  2. Step 2: Convert to fraction form
    79,521.09/119,281.56 = 20,356.68/x
  3. Step 3: Cross multiply
    79,521.09x = 119,281.56 × 20,356.68
  4. Step 4: Simplify right side
    79,521.09x = 2,428,176,546.82
  5. Step 5: Solve for x
    x = 2,428,176,546.82/79,521.09
  6. Step 6: Final answer
    x = 30,535.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.