Home / 49,501.72-74,075.21-42,861.12

Finding the Fourth Proportional to 49,501.72, 74,075.21 and 42,861.12

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Solution

The fourth proportional to 49,501.72, 74,075.21 and 42,861.12 is: 64,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,501.72 : 74,075.21 = 42,861.12 : x
  2. Step 2: Convert to fraction form
    49,501.72/74,075.21 = 42,861.12/x
  3. Step 3: Cross multiply
    49,501.72x = 74,075.21 × 42,861.12
  4. Step 4: Simplify right side
    49,501.72x = 3,174,946,758.49
  5. Step 5: Solve for x
    x = 3,174,946,758.49/49,501.72
  6. Step 6: Final answer
    x = 64,138.10

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1.5x scale

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.