Home / 42,051.77-63,089.84-12,470.32

Finding the Fourth Proportional to 42,051.77, 63,089.84 and 12,470.32

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Solution

The fourth proportional to 42,051.77, 63,089.84 and 12,470.32 is: 18,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,051.77 : 63,089.84 = 12,470.32 : x
  2. Step 2: Convert to fraction form
    42,051.77/63,089.84 = 12,470.32/x
  3. Step 3: Cross multiply
    42,051.77x = 63,089.84 × 12,470.32
  4. Step 4: Simplify right side
    42,051.77x = 786,750,533.44
  5. Step 5: Solve for x
    x = 786,750,533.44/42,051.77
  6. Step 6: Final answer
    x = 18,709.09

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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.