Home / 77,021.87-106,279.65-43,026.15

Finding the Fourth Proportional to 77,021.87, 106,279.65 and 43,026.15

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Solution

The fourth proportional to 77,021.87, 106,279.65 and 43,026.15 is: 59,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,021.87 : 106,279.65 = 43,026.15 : x
  2. Step 2: Convert to fraction form
    77,021.87/106,279.65 = 43,026.15/x
  3. Step 3: Cross multiply
    77,021.87x = 106,279.65 × 43,026.15
  4. Step 4: Simplify right side
    77,021.87x = 4,572,804,162.85
  5. Step 5: Solve for x
    x = 4,572,804,162.85/77,021.87
  6. Step 6: Final answer
    x = 59,370.21

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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.