Home / 77,258.40-115,887.60-59,740.80

Finding the Fourth Proportional to 77,258.40, 115,887.60 and 59,740.80

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Solution

The fourth proportional to 77,258.40, 115,887.60 and 59,740.80 is: 89,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,258.40 : 115,887.60 = 59,740.80 : x
  2. Step 2: Convert to fraction form
    77,258.40/115,887.60 = 59,740.80/x
  3. Step 3: Cross multiply
    77,258.40x = 115,887.60 × 59,740.80
  4. Step 4: Simplify right side
    77,258.40x = 6,923,217,934.08
  5. Step 5: Solve for x
    x = 6,923,217,934.08/77,258.40
  6. Step 6: Final answer
    x = 89,611.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.