Home / 84,856.74-117,005.68-54,188.52

Finding the Fourth Proportional to 84,856.74, 117,005.68 and 54,188.52

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Solution

The fourth proportional to 84,856.74, 117,005.68 and 54,188.52 is: 74,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,856.74 : 117,005.68 = 54,188.52 : x
  2. Step 2: Convert to fraction form
    84,856.74/117,005.68 = 54,188.52/x
  3. Step 3: Cross multiply
    84,856.74x = 117,005.68 × 54,188.52
  4. Step 4: Simplify right side
    84,856.74x = 6,340,364,630.79
  5. Step 5: Solve for x
    x = 6,340,364,630.79/84,856.74
  6. Step 6: Final answer
    x = 74,718.46

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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.