Home / 51,443.45-70,995.26-28,785.05

Finding the Fourth Proportional to 51,443.45, 70,995.26 and 28,785.05

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Solution

The fourth proportional to 51,443.45, 70,995.26 and 28,785.05 is: 39,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,443.45 : 70,995.26 = 28,785.05 : x
  2. Step 2: Convert to fraction form
    51,443.45/70,995.26 = 28,785.05/x
  3. Step 3: Cross multiply
    51,443.45x = 70,995.26 × 28,785.05
  4. Step 4: Simplify right side
    51,443.45x = 2,043,602,108.86
  5. Step 5: Solve for x
    x = 2,043,602,108.86/51,443.45
  6. Step 6: Final answer
    x = 39,725.21

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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.