Home / 97,807.12-134,977.04-55,364.74

Finding the Fourth Proportional to 97,807.12, 134,977.04 and 55,364.74

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Solution

The fourth proportional to 97,807.12, 134,977.04 and 55,364.74 is: 76,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,807.12 : 134,977.04 = 55,364.74 : x
  2. Step 2: Convert to fraction form
    97,807.12/134,977.04 = 55,364.74/x
  3. Step 3: Cross multiply
    97,807.12x = 134,977.04 × 55,364.74
  4. Step 4: Simplify right side
    97,807.12x = 7,472,968,725.57
  5. Step 5: Solve for x
    x = 7,472,968,725.57/97,807.12
  6. Step 6: Final answer
    x = 76,405.16

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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.