Home / 97,490.39-134,530.72-56,648.16

Finding the Fourth Proportional to 97,490.39, 134,530.72 and 56,648.16

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Solution

The fourth proportional to 97,490.39, 134,530.72 and 56,648.16 is: 78,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,490.39 : 134,530.72 = 56,648.16 : x
  2. Step 2: Convert to fraction form
    97,490.39/134,530.72 = 56,648.16/x
  3. Step 3: Cross multiply
    97,490.39x = 134,530.72 × 56,648.16
  4. Step 4: Simplify right side
    97,490.39x = 7,620,917,928.50
  5. Step 5: Solve for x
    x = 7,620,917,928.50/97,490.39
  6. Step 6: Final answer
    x = 78,170.97

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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.