Home / 88,615.32-122,220-56,787.18

Finding the Fourth Proportional to 88,615.32, 122,220 and 56,787.18

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Solution

The fourth proportional to 88,615.32, 122,220 and 56,787.18 is: 78,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,615.32 : 122,220 = 56,787.18 : x
  2. Step 2: Convert to fraction form
    88,615.32/122,220 = 56,787.18/x
  3. Step 3: Cross multiply
    88,615.32x = 122,220 × 56,787.18
  4. Step 4: Simplify right side
    88,615.32x = 6,940,529,139.60
  5. Step 5: Solve for x
    x = 6,940,529,139.60/88,615.32
  6. Step 6: Final answer
    x = 78,322.00

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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.