Home / 52,443.02-78,663.72-12,999.87

Finding the Fourth Proportional to 52,443.02, 78,663.72 and 12,999.87

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Solution

The fourth proportional to 52,443.02, 78,663.72 and 12,999.87 is: 19,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,443.02 : 78,663.72 = 12,999.87 : x
  2. Step 2: Convert to fraction form
    52,443.02/78,663.72 = 12,999.87/x
  3. Step 3: Cross multiply
    52,443.02x = 78,663.72 × 12,999.87
  4. Step 4: Simplify right side
    52,443.02x = 1,022,618,133.72
  5. Step 5: Solve for x
    x = 1,022,618,133.72/52,443.02
  6. Step 6: Final answer
    x = 19,499.60

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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.