Home / 60,686.51-91,029.78-19,136.75

Finding the Fourth Proportional to 60,686.51, 91,029.78 and 19,136.75

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Solution

The fourth proportional to 60,686.51, 91,029.78 and 19,136.75 is: 28,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,686.51 : 91,029.78 = 19,136.75 : x
  2. Step 2: Convert to fraction form
    60,686.51/91,029.78 = 19,136.75/x
  3. Step 3: Cross multiply
    60,686.51x = 91,029.78 × 19,136.75
  4. Step 4: Simplify right side
    60,686.51x = 1,742,014,142.42
  5. Step 5: Solve for x
    x = 1,742,014,142.42/60,686.51
  6. Step 6: Final answer
    x = 28,705.13

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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.