Home / 77,772.33-107,320.23-43,779.06

Finding the Fourth Proportional to 77,772.33, 107,320.23 and 43,779.06

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Solution

The fourth proportional to 77,772.33, 107,320.23 and 43,779.06 is: 60,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,772.33 : 107,320.23 = 43,779.06 : x
  2. Step 2: Convert to fraction form
    77,772.33/107,320.23 = 43,779.06/x
  3. Step 3: Cross multiply
    77,772.33x = 107,320.23 × 43,779.06
  4. Step 4: Simplify right side
    77,772.33x = 4,698,378,788.38
  5. Step 5: Solve for x
    x = 4,698,378,788.38/77,772.33
  6. Step 6: Final answer
    x = 60,411.96

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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.