Home / 90,985.64-125,558.90-50,701.10

Finding the Fourth Proportional to 90,985.64, 125,558.90 and 50,701.10

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Solution

The fourth proportional to 90,985.64, 125,558.90 and 50,701.10 is: 69,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,985.64 : 125,558.90 = 50,701.10 : x
  2. Step 2: Convert to fraction form
    90,985.64/125,558.90 = 50,701.10/x
  3. Step 3: Cross multiply
    90,985.64x = 125,558.90 × 50,701.10
  4. Step 4: Simplify right side
    90,985.64x = 6,365,974,344.79
  5. Step 5: Solve for x
    x = 6,365,974,344.79/90,985.64
  6. Step 6: Final answer
    x = 69,966.80

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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.