Home / 91,801.74-137,717.01-39,211.50

Finding the Fourth Proportional to 91,801.74, 137,717.01 and 39,211.50

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Solution

The fourth proportional to 91,801.74, 137,717.01 and 39,211.50 is: 58,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,801.74 : 137,717.01 = 39,211.50 : x
  2. Step 2: Convert to fraction form
    91,801.74/137,717.01 = 39,211.50/x
  3. Step 3: Cross multiply
    91,801.74x = 137,717.01 × 39,211.50
  4. Step 4: Simplify right side
    91,801.74x = 5,400,090,537.62
  5. Step 5: Solve for x
    x = 5,400,090,537.62/91,801.74
  6. Step 6: Final answer
    x = 58,823.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.