Home / 72,106.07-99,505.80-41,909.07

Finding the Fourth Proportional to 72,106.07, 99,505.80 and 41,909.07

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Solution

The fourth proportional to 72,106.07, 99,505.80 and 41,909.07 is: 57,834.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,106.07 : 99,505.80 = 41,909.07 : x
  2. Step 2: Convert to fraction form
    72,106.07/99,505.80 = 41,909.07/x
  3. Step 3: Cross multiply
    72,106.07x = 99,505.80 × 41,909.07
  4. Step 4: Simplify right side
    72,106.07x = 4,170,195,537.61
  5. Step 5: Solve for x
    x = 4,170,195,537.61/72,106.07
  6. Step 6: Final answer
    x = 57,834.18

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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.