Home / 92,740.57-127,970.35-51,903.61

Finding the Fourth Proportional to 92,740.57, 127,970.35 and 51,903.61

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Solution

The fourth proportional to 92,740.57, 127,970.35 and 51,903.61 is: 71,620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,740.57 : 127,970.35 = 51,903.61 : x
  2. Step 2: Convert to fraction form
    92,740.57/127,970.35 = 51,903.61/x
  3. Step 3: Cross multiply
    92,740.57x = 127,970.35 × 51,903.61
  4. Step 4: Simplify right side
    92,740.57x = 6,642,123,137.96
  5. Step 5: Solve for x
    x = 6,642,123,137.96/92,740.57
  6. Step 6: Final answer
    x = 71,620.47

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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.