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Finding the Fourth Proportional to 93,378.34, 128,862.52 and 50,937.78

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Solution

The fourth proportional to 93,378.34, 128,862.52 and 50,937.78 is: 70,294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,378.34 : 128,862.52 = 50,937.78 : x
  2. Step 2: Convert to fraction form
    93,378.34/128,862.52 = 50,937.78/x
  3. Step 3: Cross multiply
    93,378.34x = 128,862.52 × 50,937.78
  4. Step 4: Simplify right side
    93,378.34x = 6,563,971,049.90
  5. Step 5: Solve for x
    x = 6,563,971,049.90/93,378.34
  6. Step 6: Final answer
    x = 70,294.36

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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.