Home / 99,079.32-136,696.08-56,607.84

Finding the Fourth Proportional to 99,079.32, 136,696.08 and 56,607.84

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Solution

The fourth proportional to 99,079.32, 136,696.08 and 56,607.84 is: 78,099.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,079.32 : 136,696.08 = 56,607.84 : x
  2. Step 2: Convert to fraction form
    99,079.32/136,696.08 = 56,607.84/x
  3. Step 3: Cross multiply
    99,079.32x = 136,696.08 × 56,607.84
  4. Step 4: Simplify right side
    99,079.32x = 7,738,069,825.27
  5. Step 5: Solve for x
    x = 7,738,069,825.27/99,079.32
  6. Step 6: Final answer
    x = 78,099.75

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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.