Home / 42,219.02-63,319.06-12,633.06

Finding the Fourth Proportional to 42,219.02, 63,319.06 and 12,633.06

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Solution

The fourth proportional to 42,219.02, 63,319.06 and 12,633.06 is: 18,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,219.02 : 63,319.06 = 12,633.06 : x
  2. Step 2: Convert to fraction form
    42,219.02/63,319.06 = 12,633.06/x
  3. Step 3: Cross multiply
    42,219.02x = 63,319.06 × 12,633.06
  4. Step 4: Simplify right side
    42,219.02x = 799,913,420.96
  5. Step 5: Solve for x
    x = 799,913,420.96/42,219.02
  6. Step 6: Final answer
    x = 18,946.76

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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.