Home / 74,828.12-103,263.42-40,836.88

Finding the Fourth Proportional to 74,828.12, 103,263.42 and 40,836.88

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Solution

The fourth proportional to 74,828.12, 103,263.42 and 40,836.88 is: 56,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,828.12 : 103,263.42 = 40,836.88 : x
  2. Step 2: Convert to fraction form
    74,828.12/103,263.42 = 40,836.88/x
  3. Step 3: Cross multiply
    74,828.12x = 103,263.42 × 40,836.88
  4. Step 4: Simplify right side
    74,828.12x = 4,216,955,890.93
  5. Step 5: Solve for x
    x = 4,216,955,890.93/74,828.12
  6. Step 6: Final answer
    x = 56,355.23

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1.5x scale

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.