Home / 74,646.40-103,033.20-49,171.36

Finding the Fourth Proportional to 74,646.40, 103,033.20 and 49,171.36

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Solution

The fourth proportional to 74,646.40, 103,033.20 and 49,171.36 is: 67,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,646.40 : 103,033.20 = 49,171.36 : x
  2. Step 2: Convert to fraction form
    74,646.40/103,033.20 = 49,171.36/x
  3. Step 3: Cross multiply
    74,646.40x = 103,033.20 × 49,171.36
  4. Step 4: Simplify right side
    74,646.40x = 5,066,282,569.15
  5. Step 5: Solve for x
    x = 5,066,282,569.15/74,646.40
  6. Step 6: Final answer
    x = 67,870.42

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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.