Home / 54,368.04-81,572.81-21,111.44

Finding the Fourth Proportional to 54,368.04, 81,572.81 and 21,111.44

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Solution

The fourth proportional to 54,368.04, 81,572.81 and 21,111.44 is: 31,675.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,368.04 : 81,572.81 = 21,111.44 : x
  2. Step 2: Convert to fraction form
    54,368.04/81,572.81 = 21,111.44/x
  3. Step 3: Cross multiply
    54,368.04x = 81,572.81 × 21,111.44
  4. Step 4: Simplify right side
    54,368.04x = 1,722,118,970.53
  5. Step 5: Solve for x
    x = 1,722,118,970.53/54,368.04
  6. Step 6: Final answer
    x = 31,675.21

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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.