Home / 76,322.55-105,325.89-42,331.71

Finding the Fourth Proportional to 76,322.55, 105,325.89 and 42,331.71

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Solution

The fourth proportional to 76,322.55, 105,325.89 and 42,331.71 is: 58,418.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,322.55 : 105,325.89 = 42,331.71 : x
  2. Step 2: Convert to fraction form
    76,322.55/105,325.89 = 42,331.71/x
  3. Step 3: Cross multiply
    76,322.55x = 105,325.89 × 42,331.71
  4. Step 4: Simplify right side
    76,322.55x = 4,458,625,030.97
  5. Step 5: Solve for x
    x = 4,458,625,030.97/76,322.55
  6. Step 6: Final answer
    x = 58,418.19

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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.