Home / 88,144.12-121,555.02-57,955

Finding the Fourth Proportional to 88,144.12, 121,555.02 and 57,955

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Solution

The fourth proportional to 88,144.12, 121,555.02 and 57,955 is: 79,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,144.12 : 121,555.02 = 57,955 : x
  2. Step 2: Convert to fraction form
    88,144.12/121,555.02 = 57,955/x
  3. Step 3: Cross multiply
    88,144.12x = 121,555.02 × 57,955
  4. Step 4: Simplify right side
    88,144.12x = 7,044,721,184.10
  5. Step 5: Solve for x
    x = 7,044,721,184.10/88,144.12
  6. Step 6: Final answer
    x = 79,922.76

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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.