Home / 88,307.37-121,899.47-54,329.76

Finding the Fourth Proportional to 88,307.37, 121,899.47 and 54,329.76

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Solution

The fourth proportional to 88,307.37, 121,899.47 and 54,329.76 is: 74,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,307.37 : 121,899.47 = 54,329.76 : x
  2. Step 2: Convert to fraction form
    88,307.37/121,899.47 = 54,329.76/x
  3. Step 3: Cross multiply
    88,307.37x = 121,899.47 × 54,329.76
  4. Step 4: Simplify right side
    88,307.37x = 6,622,768,677.58
  5. Step 5: Solve for x
    x = 6,622,768,677.58/88,307.37
  6. Step 6: Final answer
    x = 74,996.78

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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.