Home / 91,719.27-126,573.98-53,477.78

Finding the Fourth Proportional to 91,719.27, 126,573.98 and 53,477.78

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Solution

The fourth proportional to 91,719.27, 126,573.98 and 53,477.78 is: 73,800.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,719.27 : 126,573.98 = 53,477.78 : x
  2. Step 2: Convert to fraction form
    91,719.27/126,573.98 = 53,477.78/x
  3. Step 3: Cross multiply
    91,719.27x = 126,573.98 × 53,477.78
  4. Step 4: Simplify right side
    91,719.27x = 6,768,894,555.91
  5. Step 5: Solve for x
    x = 6,768,894,555.91/91,719.27
  6. Step 6: Final answer
    x = 73,800.14

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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.