Home / 97,917.75-135,126.63-55,479.15

Finding the Fourth Proportional to 97,917.75, 135,126.63 and 55,479.15

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Solution

The fourth proportional to 97,917.75, 135,126.63 and 55,479.15 is: 76,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,917.75 : 135,126.63 = 55,479.15 : x
  2. Step 2: Convert to fraction form
    97,917.75/135,126.63 = 55,479.15/x
  3. Step 3: Cross multiply
    97,917.75x = 135,126.63 × 55,479.15
  4. Step 4: Simplify right side
    97,917.75x = 7,496,710,574.76
  5. Step 5: Solve for x
    x = 7,496,710,574.76/97,917.75
  6. Step 6: Final answer
    x = 76,561.30

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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.