Home / 57,153.25-78,869.05-31,659.51

Finding the Fourth Proportional to 57,153.25, 78,869.05 and 31,659.51

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Solution

The fourth proportional to 57,153.25, 78,869.05 and 31,659.51 is: 43,688.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.25 : 78,869.05 = 31,659.51 : x
  2. Step 2: Convert to fraction form
    57,153.25/78,869.05 = 31,659.51/x
  3. Step 3: Cross multiply
    57,153.25x = 78,869.05 × 31,659.51
  4. Step 4: Simplify right side
    57,153.25x = 2,496,955,477.17
  5. Step 5: Solve for x
    x = 2,496,955,477.17/57,153.25
  6. Step 6: Final answer
    x = 43,688.77

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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.