Home / 67,385.84-92,962.40-39,075.12

Finding the Fourth Proportional to 67,385.84, 92,962.40 and 39,075.12

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Solution

The fourth proportional to 67,385.84, 92,962.40 and 39,075.12 is: 53,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,385.84 : 92,962.40 = 39,075.12 : x
  2. Step 2: Convert to fraction form
    67,385.84/92,962.40 = 39,075.12/x
  3. Step 3: Cross multiply
    67,385.84x = 92,962.40 × 39,075.12
  4. Step 4: Simplify right side
    67,385.84x = 3,632,516,740.11
  5. Step 5: Solve for x
    x = 3,632,516,740.11/67,385.84
  6. Step 6: Final answer
    x = 53,906.24

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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.