Home / 89,977.83-124,090.16-61,343.79

Finding the Fourth Proportional to 89,977.83, 124,090.16 and 61,343.79

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Solution

The fourth proportional to 89,977.83, 124,090.16 and 61,343.79 is: 84,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,977.83 : 124,090.16 = 61,343.79 : x
  2. Step 2: Convert to fraction form
    89,977.83/124,090.16 = 61,343.79/x
  3. Step 3: Cross multiply
    89,977.83x = 124,090.16 × 61,343.79
  4. Step 4: Simplify right side
    89,977.83x = 7,612,160,409.39
  5. Step 5: Solve for x
    x = 7,612,160,409.39/89,977.83
  6. Step 6: Final answer
    x = 84,600.40

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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.