Home / 91,529.02-126,321.96-51,258.16

Finding the Fourth Proportional to 91,529.02, 126,321.96 and 51,258.16

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Solution

The fourth proportional to 91,529.02, 126,321.96 and 51,258.16 is: 70,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,529.02 : 126,321.96 = 51,258.16 : x
  2. Step 2: Convert to fraction form
    91,529.02/126,321.96 = 51,258.16/x
  3. Step 3: Cross multiply
    91,529.02x = 126,321.96 × 51,258.16
  4. Step 4: Simplify right side
    91,529.02x = 6,475,031,237.19
  5. Step 5: Solve for x
    x = 6,475,031,237.19/91,529.02
  6. Step 6: Final answer
    x = 70,742.93

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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.