Home / 88,342.09-121,915.34-50,623.63

Finding the Fourth Proportional to 88,342.09, 121,915.34 and 50,623.63

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Solution

The fourth proportional to 88,342.09, 121,915.34 and 50,623.63 is: 69,862.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,342.09 : 121,915.34 = 50,623.63 : x
  2. Step 2: Convert to fraction form
    88,342.09/121,915.34 = 50,623.63/x
  3. Step 3: Cross multiply
    88,342.09x = 121,915.34 × 50,623.63
  4. Step 4: Simplify right side
    88,342.09x = 6,171,796,810.37
  5. Step 5: Solve for x
    x = 6,171,796,810.37/88,342.09
  6. Step 6: Final answer
    x = 69,862.47

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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.