Home / 52,160.81-78,240.41-20,995.25

Finding the Fourth Proportional to 52,160.81, 78,240.41 and 20,995.25

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Solution

The fourth proportional to 52,160.81, 78,240.41 and 20,995.25 is: 31,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,160.81 : 78,240.41 = 20,995.25 : x
  2. Step 2: Convert to fraction form
    52,160.81/78,240.41 = 20,995.25/x
  3. Step 3: Cross multiply
    52,160.81x = 78,240.41 × 20,995.25
  4. Step 4: Simplify right side
    52,160.81x = 1,642,676,863.08
  5. Step 5: Solve for x
    x = 1,642,676,863.08/52,160.81
  6. Step 6: Final answer
    x = 31,492.55

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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.