Home / 91,289.52-125,964.86-51,001.20

Finding the Fourth Proportional to 91,289.52, 125,964.86 and 51,001.20

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Solution

The fourth proportional to 91,289.52, 125,964.86 and 51,001.20 is: 70,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,289.52 : 125,964.86 = 51,001.20 : x
  2. Step 2: Convert to fraction form
    91,289.52/125,964.86 = 51,001.20/x
  3. Step 3: Cross multiply
    91,289.52x = 125,964.86 × 51,001.20
  4. Step 4: Simplify right side
    91,289.52x = 6,424,358,762.83
  5. Step 5: Solve for x
    x = 6,424,358,762.83/91,289.52
  6. Step 6: Final answer
    x = 70,373.45

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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.