Home / 67,430.35-101,113.22-31,862.07

Finding the Fourth Proportional to 67,430.35, 101,113.22 and 31,862.07

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Solution

The fourth proportional to 67,430.35, 101,113.22 and 31,862.07 is: 47,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,430.35 : 101,113.22 = 31,862.07 : x
  2. Step 2: Convert to fraction form
    67,430.35/101,113.22 = 31,862.07/x
  3. Step 3: Cross multiply
    67,430.35x = 101,113.22 × 31,862.07
  4. Step 4: Simplify right side
    67,430.35x = 3,221,676,573.22
  5. Step 5: Solve for x
    x = 3,221,676,573.22/67,430.35
  6. Step 6: Final answer
    x = 47,777.84

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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.