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Finding the Fourth Proportional to 97,130.88, 134,039.75 and 54,109.89

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Solution

The fourth proportional to 97,130.88, 134,039.75 and 54,109.89 is: 74,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,130.88 : 134,039.75 = 54,109.89 : x
  2. Step 2: Convert to fraction form
    97,130.88/134,039.75 = 54,109.89/x
  3. Step 3: Cross multiply
    97,130.88x = 134,039.75 × 54,109.89
  4. Step 4: Simplify right side
    97,130.88x = 7,252,875,857.58
  5. Step 5: Solve for x
    x = 7,252,875,857.58/97,130.88
  6. Step 6: Final answer
    x = 74,671.16

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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.