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Finding the Fourth Proportional to 85,014.93, 127,411.68 and 52,980.84

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Solution

The fourth proportional to 85,014.93, 127,411.68 and 52,980.84 is: 79,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,014.93 : 127,411.68 = 52,980.84 : x
  2. Step 2: Convert to fraction form
    85,014.93/127,411.68 = 52,980.84/x
  3. Step 3: Cross multiply
    85,014.93x = 127,411.68 × 52,980.84
  4. Step 4: Simplify right side
    85,014.93x = 6,750,377,832.21
  5. Step 5: Solve for x
    x = 6,750,377,832.21/85,014.93
  6. Step 6: Final answer
    x = 79,402.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.