Home / 86,031.59-118,766.76-53,784.12

Finding the Fourth Proportional to 86,031.59, 118,766.76 and 53,784.12

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Solution

The fourth proportional to 86,031.59, 118,766.76 and 53,784.12 is: 74,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,031.59 : 118,766.76 = 53,784.12 : x
  2. Step 2: Convert to fraction form
    86,031.59/118,766.76 = 53,784.12/x
  3. Step 3: Cross multiply
    86,031.59x = 118,766.76 × 53,784.12
  4. Step 4: Simplify right side
    86,031.59x = 6,387,765,247.47
  5. Step 5: Solve for x
    x = 6,387,765,247.47/86,031.59
  6. Step 6: Final answer
    x = 74,249.07

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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.