Home / 74,465.16-102,761.92-40,931.16

Finding the Fourth Proportional to 74,465.16, 102,761.92 and 40,931.16

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Solution

The fourth proportional to 74,465.16, 102,761.92 and 40,931.16 is: 56,485.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,465.16 : 102,761.92 = 40,931.16 : x
  2. Step 2: Convert to fraction form
    74,465.16/102,761.92 = 40,931.16/x
  3. Step 3: Cross multiply
    74,465.16x = 102,761.92 × 40,931.16
  4. Step 4: Simplify right side
    74,465.16x = 4,206,164,101.74
  5. Step 5: Solve for x
    x = 4,206,164,101.74/74,465.16
  6. Step 6: Final answer
    x = 56,485.00

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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.