Home / 77,320.38-106,692.15-45,477.66

Finding the Fourth Proportional to 77,320.38, 106,692.15 and 45,477.66

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Solution

The fourth proportional to 77,320.38, 106,692.15 and 45,477.66 is: 62,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,320.38 : 106,692.15 = 45,477.66 : x
  2. Step 2: Convert to fraction form
    77,320.38/106,692.15 = 45,477.66/x
  3. Step 3: Cross multiply
    77,320.38x = 106,692.15 × 45,477.66
  4. Step 4: Simplify right side
    77,320.38x = 4,852,109,322.37
  5. Step 5: Solve for x
    x = 4,852,109,322.37/77,320.38
  6. Step 6: Final answer
    x = 62,753.30

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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.