Home / 92,820.16-128,091.96-50,378.70

Finding the Fourth Proportional to 92,820.16, 128,091.96 and 50,378.70

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Solution

The fourth proportional to 92,820.16, 128,091.96 and 50,378.70 is: 69,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,820.16 : 128,091.96 = 50,378.70 : x
  2. Step 2: Convert to fraction form
    92,820.16/128,091.96 = 50,378.70/x
  3. Step 3: Cross multiply
    92,820.16x = 128,091.96 × 50,378.70
  4. Step 4: Simplify right side
    92,820.16x = 6,453,106,173.36
  5. Step 5: Solve for x
    x = 6,453,106,173.36/92,820.16
  6. Step 6: Final answer
    x = 69,522.68

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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.