Home / 42,805.12-64,210.32-16,509.52

Finding the Fourth Proportional to 42,805.12, 64,210.32 and 16,509.52

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Solution

The fourth proportional to 42,805.12, 64,210.32 and 16,509.52 is: 24,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,805.12 : 64,210.32 = 16,509.52 : x
  2. Step 2: Convert to fraction form
    42,805.12/64,210.32 = 16,509.52/x
  3. Step 3: Cross multiply
    42,805.12x = 64,210.32 × 16,509.52
  4. Step 4: Simplify right side
    42,805.12x = 1,060,081,562.25
  5. Step 5: Solve for x
    x = 1,060,081,562.25/42,805.12
  6. Step 6: Final answer
    x = 24,765.30

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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.