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Finding the Fourth Proportional to 93,381.60, 128,859.92 and 50,939.24

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Solution

The fourth proportional to 93,381.60, 128,859.92 and 50,939.24 is: 70,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,381.60 : 128,859.92 = 50,939.24 : x
  2. Step 2: Convert to fraction form
    93,381.60/128,859.92 = 50,939.24/x
  3. Step 3: Cross multiply
    93,381.60x = 128,859.92 × 50,939.24
  4. Step 4: Simplify right side
    93,381.60x = 6,564,026,391.26
  5. Step 5: Solve for x
    x = 6,564,026,391.26/93,381.60
  6. Step 6: Final answer
    x = 70,292.50

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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.