Home / 61,139.31-84,336.40-38,442.33

Finding the Fourth Proportional to 61,139.31, 84,336.40 and 38,442.33

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Solution

The fourth proportional to 61,139.31, 84,336.40 and 38,442.33 is: 53,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,139.31 : 84,336.40 = 38,442.33 : x
  2. Step 2: Convert to fraction form
    61,139.31/84,336.40 = 38,442.33/x
  3. Step 3: Cross multiply
    61,139.31x = 84,336.40 × 38,442.33
  4. Step 4: Simplify right side
    61,139.31x = 3,242,087,719.81
  5. Step 5: Solve for x
    x = 3,242,087,719.81/61,139.31
  6. Step 6: Final answer
    x = 53,027.88

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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.