Home / 86,090.34-118,818.77-71,727.39

Finding the Fourth Proportional to 86,090.34, 118,818.77 and 71,727.39

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Solution

The fourth proportional to 86,090.34, 118,818.77 and 71,727.39 is: 98,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,090.34 : 118,818.77 = 71,727.39 : x
  2. Step 2: Convert to fraction form
    86,090.34/118,818.77 = 71,727.39/x
  3. Step 3: Cross multiply
    86,090.34x = 118,818.77 × 71,727.39
  4. Step 4: Simplify right side
    86,090.34x = 8,522,559,896.47
  5. Step 5: Solve for x
    x = 8,522,559,896.47/86,090.34
  6. Step 6: Final answer
    x = 98,995.54

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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.