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Finding the Fourth Proportional to 78,875, 118,313.32 and 23,471

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Solution

The fourth proportional to 78,875, 118,313.32 and 23,471 is: 35,206.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,875 : 118,313.32 = 23,471 : x
  2. Step 2: Convert to fraction form
    78,875/118,313.32 = 23,471/x
  3. Step 3: Cross multiply
    78,875x = 118,313.32 × 23,471
  4. Step 4: Simplify right side
    78,875x = 2,776,931,933.72
  5. Step 5: Solve for x
    x = 2,776,931,933.72/78,875
  6. Step 6: Final answer
    x = 35,206.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.