Home / 67,038.81-100,580.07-31,973.91

Finding the Fourth Proportional to 67,038.81, 100,580.07 and 31,973.91

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Solution

The fourth proportional to 67,038.81, 100,580.07 and 31,973.91 is: 47,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,038.81 : 100,580.07 = 31,973.91 : x
  2. Step 2: Convert to fraction form
    67,038.81/100,580.07 = 31,973.91/x
  3. Step 3: Cross multiply
    67,038.81x = 100,580.07 × 31,973.91
  4. Step 4: Simplify right side
    67,038.81x = 3,215,938,105.97
  5. Step 5: Solve for x
    x = 3,215,938,105.97/67,038.81
  6. Step 6: Final answer
    x = 47,971.29

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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.