Home / 62,819.60-86,690.40-34,138.68

Finding the Fourth Proportional to 62,819.60, 86,690.40 and 34,138.68

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Solution

The fourth proportional to 62,819.60, 86,690.40 and 34,138.68 is: 47,111.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,819.60 : 86,690.40 = 34,138.68 : x
  2. Step 2: Convert to fraction form
    62,819.60/86,690.40 = 34,138.68/x
  3. Step 3: Cross multiply
    62,819.60x = 86,690.40 × 34,138.68
  4. Step 4: Simplify right side
    62,819.60x = 2,959,495,824.67
  5. Step 5: Solve for x
    x = 2,959,495,824.67/62,819.60
  6. Step 6: Final answer
    x = 47,111.03

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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.