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Finding the Fourth Proportional to 56,444, 84,655.15 and 28,356.53

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Solution

The fourth proportional to 56,444, 84,655.15 and 28,356.53 is: 42,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,444 : 84,655.15 = 28,356.53 : x
  2. Step 2: Convert to fraction form
    56,444/84,655.15 = 28,356.53/x
  3. Step 3: Cross multiply
    56,444x = 84,655.15 × 28,356.53
  4. Step 4: Simplify right side
    56,444x = 2,400,526,300.63
  5. Step 5: Solve for x
    x = 2,400,526,300.63/56,444
  6. Step 6: Final answer
    x = 42,529.34

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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.