Home / 42,085.08-63,164.40-17,138.76

Finding the Fourth Proportional to 42,085.08, 63,164.40 and 17,138.76

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Solution

The fourth proportional to 42,085.08, 63,164.40 and 17,138.76 is: 25,723.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,085.08 : 63,164.40 = 17,138.76 : x
  2. Step 2: Convert to fraction form
    42,085.08/63,164.40 = 17,138.76/x
  3. Step 3: Cross multiply
    42,085.08x = 63,164.40 × 17,138.76
  4. Step 4: Simplify right side
    42,085.08x = 1,082,559,492.14
  5. Step 5: Solve for x
    x = 1,082,559,492.14/42,085.08
  6. Step 6: Final answer
    x = 25,723.12

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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.