Home / 42,705.03-64,057.55-21,641.79

Finding the Fourth Proportional to 42,705.03, 64,057.55 and 21,641.79

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Solution

The fourth proportional to 42,705.03, 64,057.55 and 21,641.79 is: 32,462.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,705.03 : 64,057.55 = 21,641.79 : x
  2. Step 2: Convert to fraction form
    42,705.03/64,057.55 = 21,641.79/x
  3. Step 3: Cross multiply
    42,705.03x = 64,057.55 × 21,641.79
  4. Step 4: Simplify right side
    42,705.03x = 1,386,319,936.81
  5. Step 5: Solve for x
    x = 1,386,319,936.81/42,705.03
  6. Step 6: Final answer
    x = 32,462.69

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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.