Home / 91,587.60-126,390.15-51,301.76

Finding the Fourth Proportional to 91,587.60, 126,390.15 and 51,301.76

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Solution

The fourth proportional to 91,587.60, 126,390.15 and 51,301.76 is: 70,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,587.60 : 126,390.15 = 51,301.76 : x
  2. Step 2: Convert to fraction form
    91,587.60/126,390.15 = 51,301.76/x
  3. Step 3: Cross multiply
    91,587.60x = 126,390.15 × 51,301.76
  4. Step 4: Simplify right side
    91,587.60x = 6,484,036,509.71
  5. Step 5: Solve for x
    x = 6,484,036,509.71/91,587.60
  6. Step 6: Final answer
    x = 70,796.01

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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.