Home / 65,875.52-98,816.01-19,128.39

Finding the Fourth Proportional to 65,875.52, 98,816.01 and 19,128.39

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Solution

The fourth proportional to 65,875.52, 98,816.01 and 19,128.39 is: 28,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.52 : 98,816.01 = 19,128.39 : x
  2. Step 2: Convert to fraction form
    65,875.52/98,816.01 = 19,128.39/x
  3. Step 3: Cross multiply
    65,875.52x = 98,816.01 × 19,128.39
  4. Step 4: Simplify right side
    65,875.52x = 1,890,191,177.52
  5. Step 5: Solve for x
    x = 1,890,191,177.52/65,875.52
  6. Step 6: Final answer
    x = 28,693.38

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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.