Home / 58,821.12-81,206.92-38,736.32

Finding the Fourth Proportional to 58,821.12, 81,206.92 and 38,736.32

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Solution

The fourth proportional to 58,821.12, 81,206.92 and 38,736.32 is: 53,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,821.12 : 81,206.92 = 38,736.32 : x
  2. Step 2: Convert to fraction form
    58,821.12/81,206.92 = 38,736.32/x
  3. Step 3: Cross multiply
    58,821.12x = 81,206.92 × 38,736.32
  4. Step 4: Simplify right side
    58,821.12x = 3,145,657,239.33
  5. Step 5: Solve for x
    x = 3,145,657,239.33/58,821.12
  6. Step 6: Final answer
    x = 53,478.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.