Home / 51,045.75-70,444.37-28,385.70

Finding the Fourth Proportional to 51,045.75, 70,444.37 and 28,385.70

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Solution

The fourth proportional to 51,045.75, 70,444.37 and 28,385.70 is: 39,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,045.75 : 70,444.37 = 28,385.70 : x
  2. Step 2: Convert to fraction form
    51,045.75/70,444.37 = 28,385.70/x
  3. Step 3: Cross multiply
    51,045.75x = 70,444.37 × 28,385.70
  4. Step 4: Simplify right side
    51,045.75x = 1,999,612,611.58
  5. Step 5: Solve for x
    x = 1,999,612,611.58/51,045.75
  6. Step 6: Final answer
    x = 39,172.95

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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.