Home / 91,328.98-126,114.15-57,396.28

Finding the Fourth Proportional to 91,328.98, 126,114.15 and 57,396.28

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Solution

The fourth proportional to 91,328.98, 126,114.15 and 57,396.28 is: 79,257.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,328.98 : 126,114.15 = 57,396.28 : x
  2. Step 2: Convert to fraction form
    91,328.98/126,114.15 = 57,396.28/x
  3. Step 3: Cross multiply
    91,328.98x = 126,114.15 × 57,396.28
  4. Step 4: Simplify right side
    91,328.98x = 7,238,483,065.36
  5. Step 5: Solve for x
    x = 7,238,483,065.36/91,328.98
  6. Step 6: Final answer
    x = 79,257.24

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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.