Home / 88,340.18-121,915.08-50,099.58

Finding the Fourth Proportional to 88,340.18, 121,915.08 and 50,099.58

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Solution

The fourth proportional to 88,340.18, 121,915.08 and 50,099.58 is: 69,140.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,340.18 : 121,915.08 = 50,099.58 : x
  2. Step 2: Convert to fraction form
    88,340.18/121,915.08 = 50,099.58/x
  3. Step 3: Cross multiply
    88,340.18x = 121,915.08 × 50,099.58
  4. Step 4: Simplify right side
    88,340.18x = 6,107,894,303.67
  5. Step 5: Solve for x
    x = 6,107,894,303.67/88,340.18
  6. Step 6: Final answer
    x = 69,140.62

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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.