Home / 52,858.81-72,945.26-28,985.32

Finding the Fourth Proportional to 52,858.81, 72,945.26 and 28,985.32

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Solution

The fourth proportional to 52,858.81, 72,945.26 and 28,985.32 is: 39,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,858.81 : 72,945.26 = 28,985.32 : x
  2. Step 2: Convert to fraction form
    52,858.81/72,945.26 = 28,985.32/x
  3. Step 3: Cross multiply
    52,858.81x = 72,945.26 × 28,985.32
  4. Step 4: Simplify right side
    52,858.81x = 2,114,341,703.58
  5. Step 5: Solve for x
    x = 2,114,341,703.58/52,858.81
  6. Step 6: Final answer
    x = 39,999.80

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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.