Home / 74,966.23-103,457.25-43,139.89

Finding the Fourth Proportional to 74,966.23, 103,457.25 and 43,139.89

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Solution

The fourth proportional to 74,966.23, 103,457.25 and 43,139.89 is: 59,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,966.23 : 103,457.25 = 43,139.89 : x
  2. Step 2: Convert to fraction form
    74,966.23/103,457.25 = 43,139.89/x
  3. Step 3: Cross multiply
    74,966.23x = 103,457.25 × 43,139.89
  4. Step 4: Simplify right side
    74,966.23x = 4,463,133,651.72
  5. Step 5: Solve for x
    x = 4,463,133,651.72/74,966.23
  6. Step 6: Final answer
    x = 59,535.26

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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.