Home / 74,860.62-103,309.23-40,870.55

Finding the Fourth Proportional to 74,860.62, 103,309.23 and 40,870.55

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Solution

The fourth proportional to 74,860.62, 103,309.23 and 40,870.55 is: 56,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,860.62 : 103,309.23 = 40,870.55 : x
  2. Step 2: Convert to fraction form
    74,860.62/103,309.23 = 40,870.55/x
  3. Step 3: Cross multiply
    74,860.62x = 103,309.23 × 40,870.55
  4. Step 4: Simplify right side
    74,860.62x = 4,222,304,533.63
  5. Step 5: Solve for x
    x = 4,222,304,533.63/74,860.62
  6. Step 6: Final answer
    x = 56,402.21

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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.