Home / 99,273.76-137,003.02-56,838.64

Finding the Fourth Proportional to 99,273.76, 137,003.02 and 56,838.64

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Solution

The fourth proportional to 99,273.76, 137,003.02 and 56,838.64 is: 78,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,273.76 : 137,003.02 = 56,838.64 : x
  2. Step 2: Convert to fraction form
    99,273.76/137,003.02 = 56,838.64/x
  3. Step 3: Cross multiply
    99,273.76x = 137,003.02 × 56,838.64
  4. Step 4: Simplify right side
    99,273.76x = 7,787,065,332.69
  5. Step 5: Solve for x
    x = 7,787,065,332.69/99,273.76
  6. Step 6: Final answer
    x = 78,440.32

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1.5x scale

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.