Home / 99,606.76-137,457.35-54,284.78

Finding the Fourth Proportional to 99,606.76, 137,457.35 and 54,284.78

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Solution

The fourth proportional to 99,606.76, 137,457.35 and 54,284.78 is: 74,913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,606.76 : 137,457.35 = 54,284.78 : x
  2. Step 2: Convert to fraction form
    99,606.76/137,457.35 = 54,284.78/x
  3. Step 3: Cross multiply
    99,606.76x = 137,457.35 × 54,284.78
  4. Step 4: Simplify right side
    99,606.76x = 7,461,842,004.13
  5. Step 5: Solve for x
    x = 7,461,842,004.13/99,606.76
  6. Step 6: Final answer
    x = 74,913.01

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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.