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Finding the Fourth Proportional to 86,254.50, 129,381.75 and 23,925

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Solution

The fourth proportional to 86,254.50, 129,381.75 and 23,925 is: 35,887.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,254.50 : 129,381.75 = 23,925 : x
  2. Step 2: Convert to fraction form
    86,254.50/129,381.75 = 23,925/x
  3. Step 3: Cross multiply
    86,254.50x = 129,381.75 × 23,925
  4. Step 4: Simplify right side
    86,254.50x = 3,095,458,368.75
  5. Step 5: Solve for x
    x = 3,095,458,368.75/86,254.50
  6. Step 6: Final answer
    x = 35,887.50

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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.