Home / 74,862.90-103,309.29-43,030.98

Finding the Fourth Proportional to 74,862.90, 103,309.29 and 43,030.98

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Solution

The fourth proportional to 74,862.90, 103,309.29 and 43,030.98 is: 59,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862.90 : 103,309.29 = 43,030.98 : x
  2. Step 2: Convert to fraction form
    74,862.90/103,309.29 = 43,030.98/x
  3. Step 3: Cross multiply
    74,862.90x = 103,309.29 × 43,030.98
  4. Step 4: Simplify right side
    74,862.90x = 4,445,499,991.80
  5. Step 5: Solve for x
    x = 4,445,499,991.80/74,862.90
  6. Step 6: Final answer
    x = 59,381.88

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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.