Home / 51,386.41-70,902.16-30,160.09

Finding the Fourth Proportional to 51,386.41, 70,902.16 and 30,160.09

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Solution

The fourth proportional to 51,386.41, 70,902.16 and 30,160.09 is: 41,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.41 : 70,902.16 = 30,160.09 : x
  2. Step 2: Convert to fraction form
    51,386.41/70,902.16 = 30,160.09/x
  3. Step 3: Cross multiply
    51,386.41x = 70,902.16 × 30,160.09
  4. Step 4: Simplify right side
    51,386.41x = 2,138,415,526.79
  5. Step 5: Solve for x
    x = 2,138,415,526.79/51,386.41
  6. Step 6: Final answer
    x = 41,614.42

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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.