Home / 42,840.86-64,149.48-34,475.18

Finding the Fourth Proportional to 42,840.86, 64,149.48 and 34,475.18

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Solution

The fourth proportional to 42,840.86, 64,149.48 and 34,475.18 is: 51,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,840.86 : 64,149.48 = 34,475.18 : x
  2. Step 2: Convert to fraction form
    42,840.86/64,149.48 = 34,475.18/x
  3. Step 3: Cross multiply
    42,840.86x = 64,149.48 × 34,475.18
  4. Step 4: Simplify right side
    42,840.86x = 2,211,564,549.16
  5. Step 5: Solve for x
    x = 2,211,564,549.16/42,840.86
  6. Step 6: Final answer
    x = 51,622.79

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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.