Home / 70,515.72-105,611.58-59,279.40

Finding the Fourth Proportional to 70,515.72, 105,611.58 and 59,279.40

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Solution

The fourth proportional to 70,515.72, 105,611.58 and 59,279.40 is: 88,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.72 : 105,611.58 = 59,279.40 : x
  2. Step 2: Convert to fraction form
    70,515.72/105,611.58 = 59,279.40/x
  3. Step 3: Cross multiply
    70,515.72x = 105,611.58 × 59,279.40
  4. Step 4: Simplify right side
    70,515.72x = 6,260,591,095.45
  5. Step 5: Solve for x
    x = 6,260,591,095.45/70,515.72
  6. Step 6: Final answer
    x = 88,782.91

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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.