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Finding the Fourth Proportional to 56,329.98, 77,652.57 and 42,877.80

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Solution

The fourth proportional to 56,329.98, 77,652.57 and 42,877.80 is: 59,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,329.98 : 77,652.57 = 42,877.80 : x
  2. Step 2: Convert to fraction form
    56,329.98/77,652.57 = 42,877.80/x
  3. Step 3: Cross multiply
    56,329.98x = 77,652.57 × 42,877.80
  4. Step 4: Simplify right side
    56,329.98x = 3,329,571,365.95
  5. Step 5: Solve for x
    x = 3,329,571,365.95/56,329.98
  6. Step 6: Final answer
    x = 59,108.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.