Home / 91,602.72-126,431.28-53,898.48

Finding the Fourth Proportional to 91,602.72, 126,431.28 and 53,898.48

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Solution

The fourth proportional to 91,602.72, 126,431.28 and 53,898.48 is: 74,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,602.72 : 126,431.28 = 53,898.48 : x
  2. Step 2: Convert to fraction form
    91,602.72/126,431.28 = 53,898.48/x
  3. Step 3: Cross multiply
    91,602.72x = 126,431.28 × 53,898.48
  4. Step 4: Simplify right side
    91,602.72x = 6,814,453,816.45
  5. Step 5: Solve for x
    x = 6,814,453,816.45/91,602.72
  6. Step 6: Final answer
    x = 74,391.39

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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.