Home / 72,537.39-100,108.79-40,706.41

Finding the Fourth Proportional to 72,537.39, 100,108.79 and 40,706.41

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Solution

The fourth proportional to 72,537.39, 100,108.79 and 40,706.41 is: 56,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,537.39 : 100,108.79 = 40,706.41 : x
  2. Step 2: Convert to fraction form
    72,537.39/100,108.79 = 40,706.41/x
  3. Step 3: Cross multiply
    72,537.39x = 100,108.79 × 40,706.41
  4. Step 4: Simplify right side
    72,537.39x = 4,075,069,246.81
  5. Step 5: Solve for x
    x = 4,075,069,246.81/72,537.39
  6. Step 6: Final answer
    x = 56,178.88

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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.