Home / 93,117.20-128,499.31-54,362.44

Finding the Fourth Proportional to 93,117.20, 128,499.31 and 54,362.44

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Solution

The fourth proportional to 93,117.20, 128,499.31 and 54,362.44 is: 75,018.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.20 : 128,499.31 = 54,362.44 : x
  2. Step 2: Convert to fraction form
    93,117.20/128,499.31 = 54,362.44/x
  3. Step 3: Cross multiply
    93,117.20x = 128,499.31 × 54,362.44
  4. Step 4: Simplify right side
    93,117.20x = 6,985,536,258.49
  5. Step 5: Solve for x
    x = 6,985,536,258.49/93,117.20
  6. Step 6: Final answer
    x = 75,018.76

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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.