Home / 42,120.52-63,180.86-10,955.72

Finding the Fourth Proportional to 42,120.52, 63,180.86 and 10,955.72

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Solution

The fourth proportional to 42,120.52, 63,180.86 and 10,955.72 is: 16,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.52 : 63,180.86 = 10,955.72 : x
  2. Step 2: Convert to fraction form
    42,120.52/63,180.86 = 10,955.72/x
  3. Step 3: Cross multiply
    42,120.52x = 63,180.86 × 10,955.72
  4. Step 4: Simplify right side
    42,120.52x = 692,191,811.52
  5. Step 5: Solve for x
    x = 692,191,811.52/42,120.52
  6. Step 6: Final answer
    x = 16,433.60

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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.