Home / 91,538.64-126,323.64-51,254.16

Finding the Fourth Proportional to 91,538.64, 126,323.64 and 51,254.16

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Solution

The fourth proportional to 91,538.64, 126,323.64 and 51,254.16 is: 70,730.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,538.64 : 126,323.64 = 51,254.16 : x
  2. Step 2: Convert to fraction form
    91,538.64/126,323.64 = 51,254.16/x
  3. Step 3: Cross multiply
    91,538.64x = 126,323.64 × 51,254.16
  4. Step 4: Simplify right side
    91,538.64x = 6,474,612,056.34
  5. Step 5: Solve for x
    x = 6,474,612,056.34/91,538.64
  6. Step 6: Final answer
    x = 70,730.92

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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.