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Finding the Fourth Proportional to 53,320.88, 73,583.40 and 30,671.12

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Solution

The fourth proportional to 53,320.88, 73,583.40 and 30,671.12 is: 42,326.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,320.88 : 73,583.40 = 30,671.12 : x
  2. Step 2: Convert to fraction form
    53,320.88/73,583.40 = 30,671.12/x
  3. Step 3: Cross multiply
    53,320.88x = 73,583.40 × 30,671.12
  4. Step 4: Simplify right side
    53,320.88x = 2,256,885,291.41
  5. Step 5: Solve for x
    x = 2,256,885,291.41/53,320.88
  6. Step 6: Final answer
    x = 42,326.48

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