Home / 91,417.48-126,153.60-51,131.32

Finding the Fourth Proportional to 91,417.48, 126,153.60 and 51,131.32

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Solution

The fourth proportional to 91,417.48, 126,153.60 and 51,131.32 is: 70,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,417.48 : 126,153.60 = 51,131.32 : x
  2. Step 2: Convert to fraction form
    91,417.48/126,153.60 = 51,131.32/x
  3. Step 3: Cross multiply
    91,417.48x = 126,153.60 × 51,131.32
  4. Step 4: Simplify right side
    91,417.48x = 6,450,400,090.75
  5. Step 5: Solve for x
    x = 6,450,400,090.75/91,417.48
  6. Step 6: Final answer
    x = 70,559.81

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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.