Home / 77,374.18-106,776.69-43,840.18

Finding the Fourth Proportional to 77,374.18, 106,776.69 and 43,840.18

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Solution

The fourth proportional to 77,374.18, 106,776.69 and 43,840.18 is: 60,499.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,374.18 : 106,776.69 = 43,840.18 : x
  2. Step 2: Convert to fraction form
    77,374.18/106,776.69 = 43,840.18/x
  3. Step 3: Cross multiply
    77,374.18x = 106,776.69 × 43,840.18
  4. Step 4: Simplify right side
    77,374.18x = 4,681,109,309.40
  5. Step 5: Solve for x
    x = 4,681,109,309.40/77,374.18
  6. Step 6: Final answer
    x = 60,499.63

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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.