Home / 90,822.32-125,337.84-49,988.12

Finding the Fourth Proportional to 90,822.32, 125,337.84 and 49,988.12

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Solution

The fourth proportional to 90,822.32, 125,337.84 and 49,988.12 is: 68,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,822.32 : 125,337.84 = 49,988.12 : x
  2. Step 2: Convert to fraction form
    90,822.32/125,337.84 = 49,988.12/x
  3. Step 3: Cross multiply
    90,822.32x = 125,337.84 × 49,988.12
  4. Step 4: Simplify right side
    90,822.32x = 6,265,402,986.46
  5. Step 5: Solve for x
    x = 6,265,402,986.46/90,822.32
  6. Step 6: Final answer
    x = 68,985.28

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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.