Home / 77,909.22-116,779.59-31,110.66

Finding the Fourth Proportional to 77,909.22, 116,779.59 and 31,110.66

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Solution

The fourth proportional to 77,909.22, 116,779.59 and 31,110.66 is: 46,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,909.22 : 116,779.59 = 31,110.66 : x
  2. Step 2: Convert to fraction form
    77,909.22/116,779.59 = 31,110.66/x
  3. Step 3: Cross multiply
    77,909.22x = 116,779.59 × 31,110.66
  4. Step 4: Simplify right side
    77,909.22x = 3,633,090,119.43
  5. Step 5: Solve for x
    x = 3,633,090,119.43/77,909.22
  6. Step 6: Final answer
    x = 46,632.35

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1.5x scale

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.