Home / 99,461.36-137,256.53-54,139.19

Finding the Fourth Proportional to 99,461.36, 137,256.53 and 54,139.19

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Solution

The fourth proportional to 99,461.36, 137,256.53 and 54,139.19 is: 74,712.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,461.36 : 137,256.53 = 54,139.19 : x
  2. Step 2: Convert to fraction form
    99,461.36/137,256.53 = 54,139.19/x
  3. Step 3: Cross multiply
    99,461.36x = 137,256.53 × 54,139.19
  4. Step 4: Simplify right side
    99,461.36x = 7,430,956,399.43
  5. Step 5: Solve for x
    x = 7,430,956,399.43/99,461.36
  6. Step 6: Final answer
    x = 74,712.00

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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.