Home / 91,638.01-126,458.40-53,395.18

Finding the Fourth Proportional to 91,638.01, 126,458.40 and 53,395.18

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Solution

The fourth proportional to 91,638.01, 126,458.40 and 53,395.18 is: 73,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,638.01 : 126,458.40 = 53,395.18 : x
  2. Step 2: Convert to fraction form
    91,638.01/126,458.40 = 53,395.18/x
  3. Step 3: Cross multiply
    91,638.01x = 126,458.40 × 53,395.18
  4. Step 4: Simplify right side
    91,638.01x = 6,752,268,327.08
  5. Step 5: Solve for x
    x = 6,752,268,327.08/91,638.01
  6. Step 6: Final answer
    x = 73,684.14

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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.