Home / 97,090.84-133,981.05-54,072.55

Finding the Fourth Proportional to 97,090.84, 133,981.05 and 54,072.55

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Solution

The fourth proportional to 97,090.84, 133,981.05 and 54,072.55 is: 74,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,090.84 : 133,981.05 = 54,072.55 : x
  2. Step 2: Convert to fraction form
    97,090.84/133,981.05 = 54,072.55/x
  3. Step 3: Cross multiply
    97,090.84x = 133,981.05 × 54,072.55
  4. Step 4: Simplify right side
    97,090.84x = 7,244,697,025.18
  5. Step 5: Solve for x
    x = 7,244,697,025.18/97,090.84
  6. Step 6: Final answer
    x = 74,617.72

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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.