Home / 74,028.48-102,160.80-40,496.64

Finding the Fourth Proportional to 74,028.48, 102,160.80 and 40,496.64

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Solution

The fourth proportional to 74,028.48, 102,160.80 and 40,496.64 is: 55,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,028.48 : 102,160.80 = 40,496.64 : x
  2. Step 2: Convert to fraction form
    74,028.48/102,160.80 = 40,496.64/x
  3. Step 3: Cross multiply
    74,028.48x = 102,160.80 × 40,496.64
  4. Step 4: Simplify right side
    74,028.48x = 4,137,169,139.71
  5. Step 5: Solve for x
    x = 4,137,169,139.71/74,028.48
  6. Step 6: Final answer
    x = 55,886.18

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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.