Home / 99,361.24-137,137.98-56,948.20

Finding the Fourth Proportional to 99,361.24, 137,137.98 and 56,948.20

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Solution

The fourth proportional to 99,361.24, 137,137.98 and 56,948.20 is: 78,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,361.24 : 137,137.98 = 56,948.20 : x
  2. Step 2: Convert to fraction form
    99,361.24/137,137.98 = 56,948.20/x
  3. Step 3: Cross multiply
    99,361.24x = 137,137.98 × 56,948.20
  4. Step 4: Simplify right side
    99,361.24x = 7,809,761,112.64
  5. Step 5: Solve for x
    x = 7,809,761,112.64/99,361.24
  6. Step 6: Final answer
    x = 78,599.67

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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.