Home / 48,129.49-72,145.75-20,065.08

Finding the Fourth Proportional to 48,129.49, 72,145.75 and 20,065.08

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Solution

The fourth proportional to 48,129.49, 72,145.75 and 20,065.08 is: 30,077.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,129.49 : 72,145.75 = 20,065.08 : x
  2. Step 2: Convert to fraction form
    48,129.49/72,145.75 = 20,065.08/x
  3. Step 3: Cross multiply
    48,129.49x = 72,145.75 × 20,065.08
  4. Step 4: Simplify right side
    48,129.49x = 1,447,610,245.41
  5. Step 5: Solve for x
    x = 1,447,610,245.41/48,129.49
  6. Step 6: Final answer
    x = 30,077.41

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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.