Home / 57,005.10-85,487.13-19,555.45

Finding the Fourth Proportional to 57,005.10, 85,487.13 and 19,555.45

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Solution

The fourth proportional to 57,005.10, 85,487.13 and 19,555.45 is: 29,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.10 : 85,487.13 = 19,555.45 : x
  2. Step 2: Convert to fraction form
    57,005.10/85,487.13 = 19,555.45/x
  3. Step 3: Cross multiply
    57,005.10x = 85,487.13 × 19,555.45
  4. Step 4: Simplify right side
    57,005.10x = 1,671,739,082.64
  5. Step 5: Solve for x
    x = 1,671,739,082.64/57,005.10
  6. Step 6: Final answer
    x = 29,326.13

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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.