Home / 85,590.76-128,402.22-38,846.92

Finding the Fourth Proportional to 85,590.76, 128,402.22 and 38,846.92

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Solution

The fourth proportional to 85,590.76, 128,402.22 and 38,846.92 is: 58,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590.76 : 128,402.22 = 38,846.92 : x
  2. Step 2: Convert to fraction form
    85,590.76/128,402.22 = 38,846.92/x
  3. Step 3: Cross multiply
    85,590.76x = 128,402.22 × 38,846.92
  4. Step 4: Simplify right side
    85,590.76x = 4,988,030,768.16
  5. Step 5: Solve for x
    x = 4,988,030,768.16/85,590.76
  6. Step 6: Final answer
    x = 58,277.68

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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.