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Finding the Fourth Proportional to 92,852.94, 128,138.58 and 50,411.50

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Solution

The fourth proportional to 92,852.94, 128,138.58 and 50,411.50 is: 69,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,852.94 : 128,138.58 = 50,411.50 : x
  2. Step 2: Convert to fraction form
    92,852.94/128,138.58 = 50,411.50/x
  3. Step 3: Cross multiply
    92,852.94x = 128,138.58 × 50,411.50
  4. Step 4: Simplify right side
    92,852.94x = 6,459,658,025.67
  5. Step 5: Solve for x
    x = 6,459,658,025.67/92,852.94
  6. Step 6: Final answer
    x = 69,568.70

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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.