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Finding the Fourth Proportional to 93,162.99, 128,560.64 and 50,721.39

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Solution

The fourth proportional to 93,162.99, 128,560.64 and 50,721.39 is: 69,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,162.99 : 128,560.64 = 50,721.39 : x
  2. Step 2: Convert to fraction form
    93,162.99/128,560.64 = 50,721.39/x
  3. Step 3: Cross multiply
    93,162.99x = 128,560.64 × 50,721.39
  4. Step 4: Simplify right side
    93,162.99x = 6,520,774,106.48
  5. Step 5: Solve for x
    x = 6,520,774,106.48/93,162.99
  6. Step 6: Final answer
    x = 69,993.18

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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.