Home / 52,255.02-78,384.02-12,812.10

Finding the Fourth Proportional to 52,255.02, 78,384.02 and 12,812.10

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Solution

The fourth proportional to 52,255.02, 78,384.02 and 12,812.10 is: 19,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,255.02 : 78,384.02 = 12,812.10 : x
  2. Step 2: Convert to fraction form
    52,255.02/78,384.02 = 12,812.10/x
  3. Step 3: Cross multiply
    52,255.02x = 78,384.02 × 12,812.10
  4. Step 4: Simplify right side
    52,255.02x = 1,004,263,838.58
  5. Step 5: Solve for x
    x = 1,004,263,838.58/52,255.02
  6. Step 6: Final answer
    x = 19,218.51

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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.