Home / 92,520.07-127,680.02-56,729.81

Finding the Fourth Proportional to 92,520.07, 127,680.02 and 56,729.81

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Solution

The fourth proportional to 92,520.07, 127,680.02 and 56,729.81 is: 78,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,520.07 : 127,680.02 = 56,729.81 : x
  2. Step 2: Convert to fraction form
    92,520.07/127,680.02 = 56,729.81/x
  3. Step 3: Cross multiply
    92,520.07x = 127,680.02 × 56,729.81
  4. Step 4: Simplify right side
    92,520.07x = 7,243,263,275.40
  5. Step 5: Solve for x
    x = 7,243,263,275.40/92,520.07
  6. Step 6: Final answer
    x = 78,288.56

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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.