Home / 90,810.28-125,307.30-50,513.86

Finding the Fourth Proportional to 90,810.28, 125,307.30 and 50,513.86

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Solution

The fourth proportional to 90,810.28, 125,307.30 and 50,513.86 is: 69,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,810.28 : 125,307.30 = 50,513.86 : x
  2. Step 2: Convert to fraction form
    90,810.28/125,307.30 = 50,513.86/x
  3. Step 3: Cross multiply
    90,810.28x = 125,307.30 × 50,513.86
  4. Step 4: Simplify right side
    90,810.28x = 6,329,755,409.18
  5. Step 5: Solve for x
    x = 6,329,755,409.18/90,810.28
  6. Step 6: Final answer
    x = 69,703.07

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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.