Home / 85,209.25-127,830.30-38,462.17

Finding the Fourth Proportional to 85,209.25, 127,830.30 and 38,462.17

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Solution

The fourth proportional to 85,209.25, 127,830.30 and 38,462.17 is: 57,700.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,209.25 : 127,830.30 = 38,462.17 : x
  2. Step 2: Convert to fraction form
    85,209.25/127,830.30 = 38,462.17/x
  3. Step 3: Cross multiply
    85,209.25x = 127,830.30 × 38,462.17
  4. Step 4: Simplify right side
    85,209.25x = 4,916,630,729.75
  5. Step 5: Solve for x
    x = 4,916,630,729.75/85,209.25
  6. Step 6: Final answer
    x = 57,700.67

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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.