Home / 72,209.76-99,658.80-47,132.16

Finding the Fourth Proportional to 72,209.76, 99,658.80 and 47,132.16

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Solution

The fourth proportional to 72,209.76, 99,658.80 and 47,132.16 is: 65,048.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,209.76 : 99,658.80 = 47,132.16 : x
  2. Step 2: Convert to fraction form
    72,209.76/99,658.80 = 47,132.16/x
  3. Step 3: Cross multiply
    72,209.76x = 99,658.80 × 47,132.16
  4. Step 4: Simplify right side
    72,209.76x = 4,697,134,507.01
  5. Step 5: Solve for x
    x = 4,697,134,507.01/72,209.76
  6. Step 6: Final answer
    x = 65,048.47

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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.