Home / 57,005.84-78,666.44-31,855.34

Finding the Fourth Proportional to 57,005.84, 78,666.44 and 31,855.34

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Solution

The fourth proportional to 57,005.84, 78,666.44 and 31,855.34 is: 43,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.84 : 78,666.44 = 31,855.34 : x
  2. Step 2: Convert to fraction form
    57,005.84/78,666.44 = 31,855.34/x
  3. Step 3: Cross multiply
    57,005.84x = 78,666.44 × 31,855.34
  4. Step 4: Simplify right side
    57,005.84x = 2,505,946,192.79
  5. Step 5: Solve for x
    x = 2,505,946,192.79/57,005.84
  6. Step 6: Final answer
    x = 43,959.46

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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.