Home / 85,393.14-128,002.20-35,502.18

Finding the Fourth Proportional to 85,393.14, 128,002.20 and 35,502.18

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Solution

The fourth proportional to 85,393.14, 128,002.20 and 35,502.18 is: 53,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,393.14 : 128,002.20 = 35,502.18 : x
  2. Step 2: Convert to fraction form
    85,393.14/128,002.20 = 35,502.18/x
  3. Step 3: Cross multiply
    85,393.14x = 128,002.20 × 35,502.18
  4. Step 4: Simplify right side
    85,393.14x = 4,544,357,144.80
  5. Step 5: Solve for x
    x = 4,544,357,144.80/85,393.14
  6. Step 6: Final answer
    x = 53,216.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.