Home / 72,756.03-100,417.10-45,544.78

Finding the Fourth Proportional to 72,756.03, 100,417.10 and 45,544.78

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Solution

The fourth proportional to 72,756.03, 100,417.10 and 45,544.78 is: 62,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,756.03 : 100,417.10 = 45,544.78 : x
  2. Step 2: Convert to fraction form
    72,756.03/100,417.10 = 45,544.78/x
  3. Step 3: Cross multiply
    72,756.03x = 100,417.10 × 45,544.78
  4. Step 4: Simplify right side
    72,756.03x = 4,573,474,727.74
  5. Step 5: Solve for x
    x = 4,573,474,727.74/72,756.03
  6. Step 6: Final answer
    x = 62,860.42

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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.