Home / 86,888.08-120,032.04-58,717.36

Finding the Fourth Proportional to 86,888.08, 120,032.04 and 58,717.36

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Solution

The fourth proportional to 86,888.08, 120,032.04 and 58,717.36 is: 81,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,888.08 : 120,032.04 = 58,717.36 : x
  2. Step 2: Convert to fraction form
    86,888.08/120,032.04 = 58,717.36/x
  3. Step 3: Cross multiply
    86,888.08x = 120,032.04 × 58,717.36
  4. Step 4: Simplify right side
    86,888.08x = 7,047,964,504.21
  5. Step 5: Solve for x
    x = 7,047,964,504.21/86,888.08
  6. Step 6: Final answer
    x = 81,115.44

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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.