Home / 91,901.84-126,809.28-54,170.96

Finding the Fourth Proportional to 91,901.84, 126,809.28 and 54,170.96

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Solution

The fourth proportional to 91,901.84, 126,809.28 and 54,170.96 is: 74,746.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,901.84 : 126,809.28 = 54,170.96 : x
  2. Step 2: Convert to fraction form
    91,901.84/126,809.28 = 54,170.96/x
  3. Step 3: Cross multiply
    91,901.84x = 126,809.28 × 54,170.96
  4. Step 4: Simplify right side
    91,901.84x = 6,869,380,434.51
  5. Step 5: Solve for x
    x = 6,869,380,434.51/91,901.84
  6. Step 6: Final answer
    x = 74,746.93

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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.