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Finding the Fourth Proportional to 93,388.40, 128,876.29 and 50,947.82

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Solution

The fourth proportional to 93,388.40, 128,876.29 and 50,947.82 is: 70,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,388.40 : 128,876.29 = 50,947.82 : x
  2. Step 2: Convert to fraction form
    93,388.40/128,876.29 = 50,947.82/x
  3. Step 3: Cross multiply
    93,388.40x = 128,876.29 × 50,947.82
  4. Step 4: Simplify right side
    93,388.40x = 6,565,966,025.19
  5. Step 5: Solve for x
    x = 6,565,966,025.19/93,388.40
  6. Step 6: Final answer
    x = 70,308.15

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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.