Home / 52,856.94-72,942.34-28,985.12

Finding the Fourth Proportional to 52,856.94, 72,942.34 and 28,985.12

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Solution

The fourth proportional to 52,856.94, 72,942.34 and 28,985.12 is: 39,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,856.94 : 72,942.34 = 28,985.12 : x
  2. Step 2: Convert to fraction form
    52,856.94/72,942.34 = 28,985.12/x
  3. Step 3: Cross multiply
    52,856.94x = 72,942.34 × 28,985.12
  4. Step 4: Simplify right side
    52,856.94x = 2,114,242,477.98
  5. Step 5: Solve for x
    x = 2,114,242,477.98/52,856.94
  6. Step 6: Final answer
    x = 39,999.34

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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.