Home / 78,313.74-108,073.06-42,503.75

Finding the Fourth Proportional to 78,313.74, 108,073.06 and 42,503.75

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Solution

The fourth proportional to 78,313.74, 108,073.06 and 42,503.75 is: 58,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,313.74 : 108,073.06 = 42,503.75 : x
  2. Step 2: Convert to fraction form
    78,313.74/108,073.06 = 42,503.75/x
  3. Step 3: Cross multiply
    78,313.74x = 108,073.06 × 42,503.75
  4. Step 4: Simplify right side
    78,313.74x = 4,593,510,045.81
  5. Step 5: Solve for x
    x = 4,593,510,045.81/78,313.74
  6. Step 6: Final answer
    x = 58,655.23

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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.