Home / 56,719.40-78,281.48-34,071

Finding the Fourth Proportional to 56,719.40, 78,281.48 and 34,071

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Solution

The fourth proportional to 56,719.40, 78,281.48 and 34,071 is: 47,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,719.40 : 78,281.48 = 34,071 : x
  2. Step 2: Convert to fraction form
    56,719.40/78,281.48 = 34,071/x
  3. Step 3: Cross multiply
    56,719.40x = 78,281.48 × 34,071
  4. Step 4: Simplify right side
    56,719.40x = 2,667,128,305.08
  5. Step 5: Solve for x
    x = 2,667,128,305.08/56,719.40
  6. Step 6: Final answer
    x = 47,023.21

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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.