Home / 56,875.48-85,323.24-19,426.78

Finding the Fourth Proportional to 56,875.48, 85,323.24 and 19,426.78

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Solution

The fourth proportional to 56,875.48, 85,323.24 and 19,426.78 is: 29,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,875.48 : 85,323.24 = 19,426.78 : x
  2. Step 2: Convert to fraction form
    56,875.48/85,323.24 = 19,426.78/x
  3. Step 3: Cross multiply
    56,875.48x = 85,323.24 × 19,426.78
  4. Step 4: Simplify right side
    56,875.48x = 1,657,555,812.37
  5. Step 5: Solve for x
    x = 1,657,555,812.37/56,875.48
  6. Step 6: Final answer
    x = 29,143.59

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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.