Home / 98,797.28-136,339.88-56,355.72

Finding the Fourth Proportional to 98,797.28, 136,339.88 and 56,355.72

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Solution

The fourth proportional to 98,797.28, 136,339.88 and 56,355.72 is: 77,770.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,797.28 : 136,339.88 = 56,355.72 : x
  2. Step 2: Convert to fraction form
    98,797.28/136,339.88 = 56,355.72/x
  3. Step 3: Cross multiply
    98,797.28x = 136,339.88 × 56,355.72
  4. Step 4: Simplify right side
    98,797.28x = 7,683,532,102.11
  5. Step 5: Solve for x
    x = 7,683,532,102.11/98,797.28
  6. Step 6: Final answer
    x = 77,770.68

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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.