Home / 61,719.15-85,138.32-50,246.40

Finding the Fourth Proportional to 61,719.15, 85,138.32 and 50,246.40

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Solution

The fourth proportional to 61,719.15, 85,138.32 and 50,246.40 is: 69,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,719.15 : 85,138.32 = 50,246.40 : x
  2. Step 2: Convert to fraction form
    61,719.15/85,138.32 = 50,246.40/x
  3. Step 3: Cross multiply
    61,719.15x = 85,138.32 × 50,246.40
  4. Step 4: Simplify right side
    61,719.15x = 4,277,893,686.88
  5. Step 5: Solve for x
    x = 4,277,893,686.88/61,719.15
  6. Step 6: Final answer
    x = 69,312.26

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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.