Home / 74,866.94-103,315.66-40,875.13

Finding the Fourth Proportional to 74,866.94, 103,315.66 and 40,875.13

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Solution

The fourth proportional to 74,866.94, 103,315.66 and 40,875.13 is: 56,407.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,866.94 : 103,315.66 = 40,875.13 : x
  2. Step 2: Convert to fraction form
    74,866.94/103,315.66 = 40,875.13/x
  3. Step 3: Cross multiply
    74,866.94x = 103,315.66 × 40,875.13
  4. Step 4: Simplify right side
    74,866.94x = 4,223,041,033.54
  5. Step 5: Solve for x
    x = 4,223,041,033.54/74,866.94
  6. Step 6: Final answer
    x = 56,407.29

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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.