Home / 86,973.16-120,001.35-55,130.44

Finding the Fourth Proportional to 86,973.16, 120,001.35 and 55,130.44

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Solution

The fourth proportional to 86,973.16, 120,001.35 and 55,130.44 is: 76,066.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,973.16 : 120,001.35 = 55,130.44 : x
  2. Step 2: Convert to fraction form
    86,973.16/120,001.35 = 55,130.44/x
  3. Step 3: Cross multiply
    86,973.16x = 120,001.35 × 55,130.44
  4. Step 4: Simplify right side
    86,973.16x = 6,615,727,226.09
  5. Step 5: Solve for x
    x = 6,615,727,226.09/86,973.16
  6. Step 6: Final answer
    x = 76,066.31

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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.