Home / 52,127.10-78,190.02-12,684.30

Finding the Fourth Proportional to 52,127.10, 78,190.02 and 12,684.30

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Solution

The fourth proportional to 52,127.10, 78,190.02 and 12,684.30 is: 19,026.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,127.10 : 78,190.02 = 12,684.30 : x
  2. Step 2: Convert to fraction form
    52,127.10/78,190.02 = 12,684.30/x
  3. Step 3: Cross multiply
    52,127.10x = 78,190.02 × 12,684.30
  4. Step 4: Simplify right side
    52,127.10x = 991,785,670.69
  5. Step 5: Solve for x
    x = 991,785,670.69/52,127.10
  6. Step 6: Final answer
    x = 19,026.30

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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.