Home / 48,091.13-72,136.69-13,030.78

Finding the Fourth Proportional to 48,091.13, 72,136.69 and 13,030.78

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Solution

The fourth proportional to 48,091.13, 72,136.69 and 13,030.78 is: 19,546.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,091.13 : 72,136.69 = 13,030.78 : x
  2. Step 2: Convert to fraction form
    48,091.13/72,136.69 = 13,030.78/x
  3. Step 3: Cross multiply
    48,091.13x = 72,136.69 × 13,030.78
  4. Step 4: Simplify right side
    48,091.13x = 939,997,535.84
  5. Step 5: Solve for x
    x = 939,997,535.84/48,091.13
  6. Step 6: Final answer
    x = 19,546.17

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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.