Home / 93,031.82-128,389.52-54,816.84

Finding the Fourth Proportional to 93,031.82, 128,389.52 and 54,816.84

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Solution

The fourth proportional to 93,031.82, 128,389.52 and 54,816.84 is: 75,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.82 : 128,389.52 = 54,816.84 : x
  2. Step 2: Convert to fraction form
    93,031.82/128,389.52 = 54,816.84/x
  3. Step 3: Cross multiply
    93,031.82x = 128,389.52 × 54,816.84
  4. Step 4: Simplify right side
    93,031.82x = 7,037,908,394.02
  5. Step 5: Solve for x
    x = 7,037,908,394.02/93,031.82
  6. Step 6: Final answer
    x = 75,650.55

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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.