Home / 51,037.65-70,435.13-28,381.70

Finding the Fourth Proportional to 51,037.65, 70,435.13 and 28,381.70

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Solution

The fourth proportional to 51,037.65, 70,435.13 and 28,381.70 is: 39,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.65 : 70,435.13 = 28,381.70 : x
  2. Step 2: Convert to fraction form
    51,037.65/70,435.13 = 28,381.70/x
  3. Step 3: Cross multiply
    51,037.65x = 70,435.13 × 28,381.70
  4. Step 4: Simplify right side
    51,037.65x = 1,999,068,729.12
  5. Step 5: Solve for x
    x = 1,999,068,729.12/51,037.65
  6. Step 6: Final answer
    x = 39,168.51

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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.