Home / 90,938.94-125,502.04-55,130.46

Finding the Fourth Proportional to 90,938.94, 125,502.04 and 55,130.46

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Solution

The fourth proportional to 90,938.94, 125,502.04 and 55,130.46 is: 76,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,938.94 : 125,502.04 = 55,130.46 : x
  2. Step 2: Convert to fraction form
    90,938.94/125,502.04 = 55,130.46/x
  3. Step 3: Cross multiply
    90,938.94x = 125,502.04 × 55,130.46
  4. Step 4: Simplify right side
    90,938.94x = 6,918,985,196.14
  5. Step 5: Solve for x
    x = 6,918,985,196.14/90,938.94
  6. Step 6: Final answer
    x = 76,083.86

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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.