Home / 72,740.03-100,366.20-42,519.51

Finding the Fourth Proportional to 72,740.03, 100,366.20 and 42,519.51

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Solution

The fourth proportional to 72,740.03, 100,366.20 and 42,519.51 is: 58,668.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,740.03 : 100,366.20 = 42,519.51 : x
  2. Step 2: Convert to fraction form
    72,740.03/100,366.20 = 42,519.51/x
  3. Step 3: Cross multiply
    72,740.03x = 100,366.20 × 42,519.51
  4. Step 4: Simplify right side
    72,740.03x = 4,267,521,153.01
  5. Step 5: Solve for x
    x = 4,267,521,153.01/72,740.03
  6. Step 6: Final answer
    x = 58,668.12

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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.