Home / 91,400.76-137,099.70-29,070.36

Finding the Fourth Proportional to 91,400.76, 137,099.70 and 29,070.36

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Solution

The fourth proportional to 91,400.76, 137,099.70 and 29,070.36 is: 43,605.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,400.76 : 137,099.70 = 29,070.36 : x
  2. Step 2: Convert to fraction form
    91,400.76/137,099.70 = 29,070.36/x
  3. Step 3: Cross multiply
    91,400.76x = 137,099.70 × 29,070.36
  4. Step 4: Simplify right side
    91,400.76x = 3,985,537,634.89
  5. Step 5: Solve for x
    x = 3,985,537,634.89/91,400.76
  6. Step 6: Final answer
    x = 43,605.08

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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.