Home / 45,037.02-67,555.53-13,872

Finding the Fourth Proportional to 45,037.02, 67,555.53 and 13,872

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Solution

The fourth proportional to 45,037.02, 67,555.53 and 13,872 is: 20,808

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,037.02 : 67,555.53 = 13,872 : x
  2. Step 2: Convert to fraction form
    45,037.02/67,555.53 = 13,872/x
  3. Step 3: Cross multiply
    45,037.02x = 67,555.53 × 13,872
  4. Step 4: Simplify right side
    45,037.02x = 937,130,312.16
  5. Step 5: Solve for x
    x = 937,130,312.16/45,037.02
  6. Step 6: Final answer
    x = 20,808

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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.