Home / 91,875.27-126,784.65-56,125.11

Finding the Fourth Proportional to 91,875.27, 126,784.65 and 56,125.11

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Solution

The fourth proportional to 91,875.27, 126,784.65 and 56,125.11 is: 77,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,875.27 : 126,784.65 = 56,125.11 : x
  2. Step 2: Convert to fraction form
    91,875.27/126,784.65 = 56,125.11/x
  3. Step 3: Cross multiply
    91,875.27x = 126,784.65 × 56,125.11
  4. Step 4: Simplify right side
    91,875.27x = 7,115,802,427.56
  5. Step 5: Solve for x
    x = 7,115,802,427.56/91,875.27
  6. Step 6: Final answer
    x = 77,450.68

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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.