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Finding the Fourth Proportional to 62,911, 94,381.08 and 21,358

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Solution

The fourth proportional to 62,911, 94,381.08 and 21,358 is: 32,041.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,911 : 94,381.08 = 21,358 : x
  2. Step 2: Convert to fraction form
    62,911/94,381.08 = 21,358/x
  3. Step 3: Cross multiply
    62,911x = 94,381.08 × 21,358
  4. Step 4: Simplify right side
    62,911x = 2,015,791,106.64
  5. Step 5: Solve for x
    x = 2,015,791,106.64/62,911
  6. Step 6: Final answer
    x = 32,041.95

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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.