Home / 55,145.60-82,718.40-52,812.80

Finding the Fourth Proportional to 55,145.60, 82,718.40 and 52,812.80

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Solution

The fourth proportional to 55,145.60, 82,718.40 and 52,812.80 is: 79,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,145.60 : 82,718.40 = 52,812.80 : x
  2. Step 2: Convert to fraction form
    55,145.60/82,718.40 = 52,812.80/x
  3. Step 3: Cross multiply
    55,145.60x = 82,718.40 × 52,812.80
  4. Step 4: Simplify right side
    55,145.60x = 4,368,590,315.52
  5. Step 5: Solve for x
    x = 4,368,590,315.52/55,145.60
  6. Step 6: Final answer
    x = 79,219.20

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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.