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Finding the Fourth Proportional to 56,352, 84,557.16 and 28,650

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Solution

The fourth proportional to 56,352, 84,557.16 and 28,650 is: 42,989.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,352 : 84,557.16 = 28,650 : x
  2. Step 2: Convert to fraction form
    56,352/84,557.16 = 28,650/x
  3. Step 3: Cross multiply
    56,352x = 84,557.16 × 28,650
  4. Step 4: Simplify right side
    56,352x = 2,422,562,634
  5. Step 5: Solve for x
    x = 2,422,562,634/56,352
  6. Step 6: Final answer
    x = 42,989.83

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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.