Home / 42,666.12-64,000.11-13,083.30

Finding the Fourth Proportional to 42,666.12, 64,000.11 and 13,083.30

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Solution

The fourth proportional to 42,666.12, 64,000.11 and 13,083.30 is: 19,625.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,666.12 : 64,000.11 = 13,083.30 : x
  2. Step 2: Convert to fraction form
    42,666.12/64,000.11 = 13,083.30/x
  3. Step 3: Cross multiply
    42,666.12x = 64,000.11 × 13,083.30
  4. Step 4: Simplify right side
    42,666.12x = 837,332,639.16
  5. Step 5: Solve for x
    x = 837,332,639.16/42,666.12
  6. Step 6: Final answer
    x = 19,625.24

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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.