Home / 72,864.09-100,556.73-44,575.20

Finding the Fourth Proportional to 72,864.09, 100,556.73 and 44,575.20

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Solution

The fourth proportional to 72,864.09, 100,556.73 and 44,575.20 is: 61,516.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864.09 : 100,556.73 = 44,575.20 : x
  2. Step 2: Convert to fraction form
    72,864.09/100,556.73 = 44,575.20/x
  3. Step 3: Cross multiply
    72,864.09x = 100,556.73 × 44,575.20
  4. Step 4: Simplify right side
    72,864.09x = 4,482,336,351.10
  5. Step 5: Solve for x
    x = 4,482,336,351.10/72,864.09
  6. Step 6: Final answer
    x = 61,516.40

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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.