Home / 69,085.81-95,331.63-38,870.45

Finding the Fourth Proportional to 69,085.81, 95,331.63 and 38,870.45

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Solution

The fourth proportional to 69,085.81, 95,331.63 and 38,870.45 is: 53,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,085.81 : 95,331.63 = 38,870.45 : x
  2. Step 2: Convert to fraction form
    69,085.81/95,331.63 = 38,870.45/x
  3. Step 3: Cross multiply
    69,085.81x = 95,331.63 × 38,870.45
  4. Step 4: Simplify right side
    69,085.81x = 3,705,583,357.33
  5. Step 5: Solve for x
    x = 3,705,583,357.33/69,085.81
  6. Step 6: Final answer
    x = 53,637.40

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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.