Home / 70,739.60-97,618.73-40,118.31

Finding the Fourth Proportional to 70,739.60, 97,618.73 and 40,118.31

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Solution

The fourth proportional to 70,739.60, 97,618.73 and 40,118.31 is: 55,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.60 : 97,618.73 = 40,118.31 : x
  2. Step 2: Convert to fraction form
    70,739.60/97,618.73 = 40,118.31/x
  3. Step 3: Cross multiply
    70,739.60x = 97,618.73 × 40,118.31
  4. Step 4: Simplify right side
    70,739.60x = 3,916,298,271.35
  5. Step 5: Solve for x
    x = 3,916,298,271.35/70,739.60
  6. Step 6: Final answer
    x = 55,362.18

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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.