Home / 74,869.56-103,318.47-43,038.18

Finding the Fourth Proportional to 74,869.56, 103,318.47 and 43,038.18

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Solution

The fourth proportional to 74,869.56, 103,318.47 and 43,038.18 is: 59,391.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,869.56 : 103,318.47 = 43,038.18 : x
  2. Step 2: Convert to fraction form
    74,869.56/103,318.47 = 43,038.18/x
  3. Step 3: Cross multiply
    74,869.56x = 103,318.47 × 43,038.18
  4. Step 4: Simplify right side
    74,869.56x = 4,446,638,909.18
  5. Step 5: Solve for x
    x = 4,446,638,909.18/74,869.56
  6. Step 6: Final answer
    x = 59,391.81

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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.