Home / 88,012.04-121,411.71-55,692.05

Finding the Fourth Proportional to 88,012.04, 121,411.71 and 55,692.05

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Solution

The fourth proportional to 88,012.04, 121,411.71 and 55,692.05 is: 76,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,012.04 : 121,411.71 = 55,692.05 : x
  2. Step 2: Convert to fraction form
    88,012.04/121,411.71 = 55,692.05/x
  3. Step 3: Cross multiply
    88,012.04x = 121,411.71 × 55,692.05
  4. Step 4: Simplify right side
    88,012.04x = 6,761,666,416.85
  5. Step 5: Solve for x
    x = 6,761,666,416.85/88,012.04
  6. Step 6: Final answer
    x = 76,826.61

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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.