Home / 74,000.30-111,000.45-51,838.70

Finding the Fourth Proportional to 74,000.30, 111,000.45 and 51,838.70

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Solution

The fourth proportional to 74,000.30, 111,000.45 and 51,838.70 is: 77,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,000.30 : 111,000.45 = 51,838.70 : x
  2. Step 2: Convert to fraction form
    74,000.30/111,000.45 = 51,838.70/x
  3. Step 3: Cross multiply
    74,000.30x = 111,000.45 × 51,838.70
  4. Step 4: Simplify right side
    74,000.30x = 5,754,119,027.42
  5. Step 5: Solve for x
    x = 5,754,119,027.42/74,000.30
  6. Step 6: Final answer
    x = 77,758.05

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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.