Home / 45,948.64-68,929.14-31,690.76

Finding the Fourth Proportional to 45,948.64, 68,929.14 and 31,690.76

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Solution

The fourth proportional to 45,948.64, 68,929.14 and 31,690.76 is: 47,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,948.64 : 68,929.14 = 31,690.76 : x
  2. Step 2: Convert to fraction form
    45,948.64/68,929.14 = 31,690.76/x
  3. Step 3: Cross multiply
    45,948.64x = 68,929.14 × 31,690.76
  4. Step 4: Simplify right side
    45,948.64x = 2,184,416,832.75
  5. Step 5: Solve for x
    x = 2,184,416,832.75/45,948.64
  6. Step 6: Final answer
    x = 47,540.40

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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.