Home / 42,715.20-64,036.33-30,195.84

Finding the Fourth Proportional to 42,715.20, 64,036.33 and 30,195.84

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Solution

The fourth proportional to 42,715.20, 64,036.33 and 30,195.84 is: 45,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,715.20 : 64,036.33 = 30,195.84 : x
  2. Step 2: Convert to fraction form
    42,715.20/64,036.33 = 30,195.84/x
  3. Step 3: Cross multiply
    42,715.20x = 64,036.33 × 30,195.84
  4. Step 4: Simplify right side
    42,715.20x = 1,933,630,774.87
  5. Step 5: Solve for x
    x = 1,933,630,774.87/42,715.20
  6. Step 6: Final answer
    x = 45,267.98

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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.