Home / 74,027.52-102,158.78-40,493.52

Finding the Fourth Proportional to 74,027.52, 102,158.78 and 40,493.52

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Solution

The fourth proportional to 74,027.52, 102,158.78 and 40,493.52 is: 55,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,027.52 : 102,158.78 = 40,493.52 : x
  2. Step 2: Convert to fraction form
    74,027.52/102,158.78 = 40,493.52/x
  3. Step 3: Cross multiply
    74,027.52x = 102,158.78 × 40,493.52
  4. Step 4: Simplify right side
    74,027.52x = 4,136,768,601.11
  5. Step 5: Solve for x
    x = 4,136,768,601.11/74,027.52
  6. Step 6: Final answer
    x = 55,881.50

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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.