Home / 61,135.20-84,370.64-34,279.48

Finding the Fourth Proportional to 61,135.20, 84,370.64 and 34,279.48

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Solution

The fourth proportional to 61,135.20, 84,370.64 and 34,279.48 is: 47,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.20 : 84,370.64 = 34,279.48 : x
  2. Step 2: Convert to fraction form
    61,135.20/84,370.64 = 34,279.48/x
  3. Step 3: Cross multiply
    61,135.20x = 84,370.64 × 34,279.48
  4. Step 4: Simplify right side
    61,135.20x = 2,892,181,666.47
  5. Step 5: Solve for x
    x = 2,892,181,666.47/61,135.20
  6. Step 6: Final answer
    x = 47,307.96

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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.