Home / 72,535.04-100,072.69-47,399.12

Finding the Fourth Proportional to 72,535.04, 100,072.69 and 47,399.12

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Solution

The fourth proportional to 72,535.04, 100,072.69 and 47,399.12 is: 65,394.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,535.04 : 100,072.69 = 47,399.12 : x
  2. Step 2: Convert to fraction form
    72,535.04/100,072.69 = 47,399.12/x
  3. Step 3: Cross multiply
    72,535.04x = 100,072.69 × 47,399.12
  4. Step 4: Simplify right side
    72,535.04x = 4,743,356,823.17
  5. Step 5: Solve for x
    x = 4,743,356,823.17/72,535.04
  6. Step 6: Final answer
    x = 65,394.01

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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.