Home / 77,436.74-106,860.65-43,442.39

Finding the Fourth Proportional to 77,436.74, 106,860.65 and 43,442.39

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Solution

The fourth proportional to 77,436.74, 106,860.65 and 43,442.39 is: 59,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,436.74 : 106,860.65 = 43,442.39 : x
  2. Step 2: Convert to fraction form
    77,436.74/106,860.65 = 43,442.39/x
  3. Step 3: Cross multiply
    77,436.74x = 106,860.65 × 43,442.39
  4. Step 4: Simplify right side
    77,436.74x = 4,642,281,281.44
  5. Step 5: Solve for x
    x = 4,642,281,281.44/77,436.74
  6. Step 6: Final answer
    x = 59,949.34

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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.