Home / 72,102.07-99,500.28-41,905.07

Finding the Fourth Proportional to 72,102.07, 99,500.28 and 41,905.07

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Solution

The fourth proportional to 72,102.07, 99,500.28 and 41,905.07 is: 57,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,102.07 : 99,500.28 = 41,905.07 : x
  2. Step 2: Convert to fraction form
    72,102.07/99,500.28 = 41,905.07/x
  3. Step 3: Cross multiply
    72,102.07x = 99,500.28 × 41,905.07
  4. Step 4: Simplify right side
    72,102.07x = 4,169,566,198.42
  5. Step 5: Solve for x
    x = 4,169,566,198.42/72,102.07
  6. Step 6: Final answer
    x = 57,828.66

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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.