Home / 86,202.93-129,303.10-38,784.54

Finding the Fourth Proportional to 86,202.93, 129,303.10 and 38,784.54

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Solution

The fourth proportional to 86,202.93, 129,303.10 and 38,784.54 is: 58,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,202.93 : 129,303.10 = 38,784.54 : x
  2. Step 2: Convert to fraction form
    86,202.93/129,303.10 = 38,784.54/x
  3. Step 3: Cross multiply
    86,202.93x = 129,303.10 × 38,784.54
  4. Step 4: Simplify right side
    86,202.93x = 5,014,961,254.07
  5. Step 5: Solve for x
    x = 5,014,961,254.07/86,202.93
  6. Step 6: Final answer
    x = 58,176.23

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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.