Home / 88,116.96-121,611-52,315.76

Finding the Fourth Proportional to 88,116.96, 121,611 and 52,315.76

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Solution

The fourth proportional to 88,116.96, 121,611 and 52,315.76 is: 72,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,116.96 : 121,611 = 52,315.76 : x
  2. Step 2: Convert to fraction form
    88,116.96/121,611 = 52,315.76/x
  3. Step 3: Cross multiply
    88,116.96x = 121,611 × 52,315.76
  4. Step 4: Simplify right side
    88,116.96x = 6,362,171,889.36
  5. Step 5: Solve for x
    x = 6,362,171,889.36/88,116.96
  6. Step 6: Final answer
    x = 72,201.45

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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.