Home / 99,308.03-137,047.75-53,989.08

Finding the Fourth Proportional to 99,308.03, 137,047.75 and 53,989.08

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Solution

The fourth proportional to 99,308.03, 137,047.75 and 53,989.08 is: 74,506.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,308.03 : 137,047.75 = 53,989.08 : x
  2. Step 2: Convert to fraction form
    99,308.03/137,047.75 = 53,989.08/x
  3. Step 3: Cross multiply
    99,308.03x = 137,047.75 × 53,989.08
  4. Step 4: Simplify right side
    99,308.03x = 7,399,081,938.57
  5. Step 5: Solve for x
    x = 7,399,081,938.57/99,308.03
  6. Step 6: Final answer
    x = 74,506.38

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1.5x scale

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.