Home / 96,904.12-145,412.40-40,739.80

Finding the Fourth Proportional to 96,904.12, 145,412.40 and 40,739.80

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Solution

The fourth proportional to 96,904.12, 145,412.40 and 40,739.80 is: 61,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,904.12 : 145,412.40 = 40,739.80 : x
  2. Step 2: Convert to fraction form
    96,904.12/145,412.40 = 40,739.80/x
  3. Step 3: Cross multiply
    96,904.12x = 145,412.40 × 40,739.80
  4. Step 4: Simplify right side
    96,904.12x = 5,924,072,093.52
  5. Step 5: Solve for x
    x = 5,924,072,093.52/96,904.12
  6. Step 6: Final answer
    x = 61,133.34

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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.