Home / 97,876.09-135,064.48-55,434.92

Finding the Fourth Proportional to 97,876.09, 135,064.48 and 55,434.92

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Solution

The fourth proportional to 97,876.09, 135,064.48 and 55,434.92 is: 76,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,876.09 : 135,064.48 = 55,434.92 : x
  2. Step 2: Convert to fraction form
    97,876.09/135,064.48 = 55,434.92/x
  3. Step 3: Cross multiply
    97,876.09x = 135,064.48 × 55,434.92
  4. Step 4: Simplify right side
    97,876.09x = 7,487,288,643.64
  5. Step 5: Solve for x
    x = 7,487,288,643.64/97,876.09
  6. Step 6: Final answer
    x = 76,497.63

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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.