Home / 92,931.41-128,245.69-50,489.95

Finding the Fourth Proportional to 92,931.41, 128,245.69 and 50,489.95

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Solution

The fourth proportional to 92,931.41, 128,245.69 and 50,489.95 is: 69,676.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,931.41 : 128,245.69 = 50,489.95 : x
  2. Step 2: Convert to fraction form
    92,931.41/128,245.69 = 50,489.95/x
  3. Step 3: Cross multiply
    92,931.41x = 128,245.69 × 50,489.95
  4. Step 4: Simplify right side
    92,931.41x = 6,475,118,475.82
  5. Step 5: Solve for x
    x = 6,475,118,475.82/92,931.41
  6. Step 6: Final answer
    x = 69,676.32

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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.