Home / 42,075.46-63,122.91-12,492.64

Finding the Fourth Proportional to 42,075.46, 63,122.91 and 12,492.64

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Solution

The fourth proportional to 42,075.46, 63,122.91 and 12,492.64 is: 18,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,075.46 : 63,122.91 = 12,492.64 : x
  2. Step 2: Convert to fraction form
    42,075.46/63,122.91 = 12,492.64/x
  3. Step 3: Cross multiply
    42,075.46x = 63,122.91 × 12,492.64
  4. Step 4: Simplify right side
    42,075.46x = 788,571,790.38
  5. Step 5: Solve for x
    x = 788,571,790.38/42,075.46
  6. Step 6: Final answer
    x = 18,741.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.