Home / 42,705.82-64,070.48-20,537.74

Finding the Fourth Proportional to 42,705.82, 64,070.48 and 20,537.74

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Solution

The fourth proportional to 42,705.82, 64,070.48 and 20,537.74 is: 30,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,705.82 : 64,070.48 = 20,537.74 : x
  2. Step 2: Convert to fraction form
    42,705.82/64,070.48 = 20,537.74/x
  3. Step 3: Cross multiply
    42,705.82x = 64,070.48 × 20,537.74
  4. Step 4: Simplify right side
    42,705.82x = 1,315,862,757.23
  5. Step 5: Solve for x
    x = 1,315,862,757.23/42,705.82
  6. Step 6: Final answer
    x = 30,812.26

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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.