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Finding the Fourth Proportional to 81,004.76, 121,510.82 and 24,840.76

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Solution

The fourth proportional to 81,004.76, 121,510.82 and 24,840.76 is: 37,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,004.76 : 121,510.82 = 24,840.76 : x
  2. Step 2: Convert to fraction form
    81,004.76/121,510.82 = 24,840.76/x
  3. Step 3: Cross multiply
    81,004.76x = 121,510.82 × 24,840.76
  4. Step 4: Simplify right side
    81,004.76x = 3,018,421,117.02
  5. Step 5: Solve for x
    x = 3,018,421,117.02/81,004.76
  6. Step 6: Final answer
    x = 37,262.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.