Home / 51,390.01-70,929.66-31,242.63

Finding the Fourth Proportional to 51,390.01, 70,929.66 and 31,242.63

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Solution

The fourth proportional to 51,390.01, 70,929.66 and 31,242.63 is: 43,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,390.01 : 70,929.66 = 31,242.63 : x
  2. Step 2: Convert to fraction form
    51,390.01/70,929.66 = 31,242.63/x
  3. Step 3: Cross multiply
    51,390.01x = 70,929.66 × 31,242.63
  4. Step 4: Simplify right side
    51,390.01x = 2,216,029,123.41
  5. Step 5: Solve for x
    x = 2,216,029,123.41/51,390.01
  6. Step 6: Final answer
    x = 43,121.79

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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.