Home / 57,330.79-85,979.58-19,889.35

Finding the Fourth Proportional to 57,330.79, 85,979.58 and 19,889.35

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Solution

The fourth proportional to 57,330.79, 85,979.58 and 19,889.35 is: 29,828.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,330.79 : 85,979.58 = 19,889.35 : x
  2. Step 2: Convert to fraction form
    57,330.79/85,979.58 = 19,889.35/x
  3. Step 3: Cross multiply
    57,330.79x = 85,979.58 × 19,889.35
  4. Step 4: Simplify right side
    57,330.79x = 1,710,077,959.47
  5. Step 5: Solve for x
    x = 1,710,077,959.47/57,330.79
  6. Step 6: Final answer
    x = 29,828.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.