Home / 74,143.55-102,326.39-42,317.84

Finding the Fourth Proportional to 74,143.55, 102,326.39 and 42,317.84

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Solution

The fourth proportional to 74,143.55, 102,326.39 and 42,317.84 is: 58,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.55 : 102,326.39 = 42,317.84 : x
  2. Step 2: Convert to fraction form
    74,143.55/102,326.39 = 42,317.84/x
  3. Step 3: Cross multiply
    74,143.55x = 102,326.39 × 42,317.84
  4. Step 4: Simplify right side
    74,143.55x = 4,330,232,002.72
  5. Step 5: Solve for x
    x = 4,330,232,002.72/74,143.55
  6. Step 6: Final answer
    x = 58,403.35

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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.