Home / 51,307.30-76,785.90-42,996.70

Finding the Fourth Proportional to 51,307.30, 76,785.90 and 42,996.70

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Solution

The fourth proportional to 51,307.30, 76,785.90 and 42,996.70 is: 64,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,307.30 : 76,785.90 = 42,996.70 : x
  2. Step 2: Convert to fraction form
    51,307.30/76,785.90 = 42,996.70/x
  3. Step 3: Cross multiply
    51,307.30x = 76,785.90 × 42,996.70
  4. Step 4: Simplify right side
    51,307.30x = 3,301,540,306.53
  5. Step 5: Solve for x
    x = 3,301,540,306.53/51,307.30
  6. Step 6: Final answer
    x = 64,348.35

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1.5x scale

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.