Home / 74,117.30-102,281.13-40,124.88

Finding the Fourth Proportional to 74,117.30, 102,281.13 and 40,124.88

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Solution

The fourth proportional to 74,117.30, 102,281.13 and 40,124.88 is: 55,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,117.30 : 102,281.13 = 40,124.88 : x
  2. Step 2: Convert to fraction form
    74,117.30/102,281.13 = 40,124.88/x
  3. Step 3: Cross multiply
    74,117.30x = 102,281.13 × 40,124.88
  4. Step 4: Simplify right side
    74,117.30x = 4,104,018,067.51
  5. Step 5: Solve for x
    x = 4,104,018,067.51/74,117.30
  6. Step 6: Final answer
    x = 55,371.94

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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.