Home / 91,124.28-125,751.60-53,398.50

Finding the Fourth Proportional to 91,124.28, 125,751.60 and 53,398.50

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Solution

The fourth proportional to 91,124.28, 125,751.60 and 53,398.50 is: 73,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,124.28 : 125,751.60 = 53,398.50 : x
  2. Step 2: Convert to fraction form
    91,124.28/125,751.60 = 53,398.50/x
  3. Step 3: Cross multiply
    91,124.28x = 125,751.60 × 53,398.50
  4. Step 4: Simplify right side
    91,124.28x = 6,714,946,812.60
  5. Step 5: Solve for x
    x = 6,714,946,812.60/91,124.28
  6. Step 6: Final answer
    x = 73,689.98

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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.