Home / 77,826.10-107,405.25-43,376.20

Finding the Fourth Proportional to 77,826.10, 107,405.25 and 43,376.20

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Solution

The fourth proportional to 77,826.10, 107,405.25 and 43,376.20 is: 59,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,826.10 : 107,405.25 = 43,376.20 : x
  2. Step 2: Convert to fraction form
    77,826.10/107,405.25 = 43,376.20/x
  3. Step 3: Cross multiply
    77,826.10x = 107,405.25 × 43,376.20
  4. Step 4: Simplify right side
    77,826.10x = 4,658,831,605.05
  5. Step 5: Solve for x
    x = 4,658,831,605.05/77,826.10
  6. Step 6: Final answer
    x = 59,862.07

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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.