Home / 42,748.15-64,118.43-19,056.87

Finding the Fourth Proportional to 42,748.15, 64,118.43 and 19,056.87

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Solution

The fourth proportional to 42,748.15, 64,118.43 and 19,056.87 is: 28,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748.15 : 64,118.43 = 19,056.87 : x
  2. Step 2: Convert to fraction form
    42,748.15/64,118.43 = 19,056.87/x
  3. Step 3: Cross multiply
    42,748.15x = 64,118.43 × 19,056.87
  4. Step 4: Simplify right side
    42,748.15x = 1,221,896,169.24
  5. Step 5: Solve for x
    x = 1,221,896,169.24/42,748.15
  6. Step 6: Final answer
    x = 28,583.60

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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.