Home / 85,258.31-117,657.03-47,019.21

Finding the Fourth Proportional to 85,258.31, 117,657.03 and 47,019.21

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Solution

The fourth proportional to 85,258.31, 117,657.03 and 47,019.21 is: 64,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,258.31 : 117,657.03 = 47,019.21 : x
  2. Step 2: Convert to fraction form
    85,258.31/117,657.03 = 47,019.21/x
  3. Step 3: Cross multiply
    85,258.31x = 117,657.03 × 47,019.21
  4. Step 4: Simplify right side
    85,258.31x = 5,532,140,601.55
  5. Step 5: Solve for x
    x = 5,532,140,601.55/85,258.31
  6. Step 6: Final answer
    x = 64,886.82

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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.