Home / 83,420.34-115,121.43-45,692.16

Finding the Fourth Proportional to 83,420.34, 115,121.43 and 45,692.16

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Solution

The fourth proportional to 83,420.34, 115,121.43 and 45,692.16 is: 63,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,420.34 : 115,121.43 = 45,692.16 : x
  2. Step 2: Convert to fraction form
    83,420.34/115,121.43 = 45,692.16/x
  3. Step 3: Cross multiply
    83,420.34x = 115,121.43 × 45,692.16
  4. Step 4: Simplify right side
    83,420.34x = 5,260,146,798.99
  5. Step 5: Solve for x
    x = 5,260,146,798.99/83,420.34
  6. Step 6: Final answer
    x = 63,055.93

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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.