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Finding the Fourth Proportional to 85,367.84, 128,051.79 and 23,038.34

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Solution

The fourth proportional to 85,367.84, 128,051.79 and 23,038.34 is: 34,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,367.84 : 128,051.79 = 23,038.34 : x
  2. Step 2: Convert to fraction form
    85,367.84/128,051.79 = 23,038.34/x
  3. Step 3: Cross multiply
    85,367.84x = 128,051.79 × 23,038.34
  4. Step 4: Simplify right side
    85,367.84x = 2,950,100,675.63
  5. Step 5: Solve for x
    x = 2,950,100,675.63/85,367.84
  6. Step 6: Final answer
    x = 34,557.52

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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.