Home / 91,143.68-125,744.64-53,404.16

Finding the Fourth Proportional to 91,143.68, 125,744.64 and 53,404.16

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Solution

The fourth proportional to 91,143.68, 125,744.64 and 53,404.16 is: 73,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,143.68 : 125,744.64 = 53,404.16 : x
  2. Step 2: Convert to fraction form
    91,143.68/125,744.64 = 53,404.16/x
  3. Step 3: Cross multiply
    91,143.68x = 125,744.64 × 53,404.16
  4. Step 4: Simplify right side
    91,143.68x = 6,715,286,873.70
  5. Step 5: Solve for x
    x = 6,715,286,873.70/91,143.68
  6. Step 6: Final answer
    x = 73,678.03

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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.