Home / 70,986.96-97,965.18-40,782.06

Finding the Fourth Proportional to 70,986.96, 97,965.18 and 40,782.06

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Solution

The fourth proportional to 70,986.96, 97,965.18 and 40,782.06 is: 56,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,986.96 : 97,965.18 = 40,782.06 : x
  2. Step 2: Convert to fraction form
    70,986.96/97,965.18 = 40,782.06/x
  3. Step 3: Cross multiply
    70,986.96x = 97,965.18 × 40,782.06
  4. Step 4: Simplify right side
    70,986.96x = 3,995,221,848.67
  5. Step 5: Solve for x
    x = 3,995,221,848.67/70,986.96
  6. Step 6: Final answer
    x = 56,281.07

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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.