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Finding the Fourth Proportional to 84,420.84, 126,631.47 and 34,500.93

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Solution

The fourth proportional to 84,420.84, 126,631.47 and 34,500.93 is: 51,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,420.84 : 126,631.47 = 34,500.93 : x
  2. Step 2: Convert to fraction form
    84,420.84/126,631.47 = 34,500.93/x
  3. Step 3: Cross multiply
    84,420.84x = 126,631.47 × 34,500.93
  4. Step 4: Simplify right side
    84,420.84x = 4,368,903,482.27
  5. Step 5: Solve for x
    x = 4,368,903,482.27/84,420.84
  6. Step 6: Final answer
    x = 51,751.48

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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.