Home / 55,657.18-76,805.22-31,779.19

Finding the Fourth Proportional to 55,657.18, 76,805.22 and 31,779.19

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Solution

The fourth proportional to 55,657.18, 76,805.22 and 31,779.19 is: 43,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,657.18 : 76,805.22 = 31,779.19 : x
  2. Step 2: Convert to fraction form
    55,657.18/76,805.22 = 31,779.19/x
  3. Step 3: Cross multiply
    55,657.18x = 76,805.22 × 31,779.19
  4. Step 4: Simplify right side
    55,657.18x = 2,440,807,679.37
  5. Step 5: Solve for x
    x = 2,440,807,679.37/55,657.18
  6. Step 6: Final answer
    x = 43,854.32

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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.