Home / 88,435.08-121,886.64-77,033.52

Finding the Fourth Proportional to 88,435.08, 121,886.64 and 77,033.52

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Solution

The fourth proportional to 88,435.08, 121,886.64 and 77,033.52 is: 106,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,435.08 : 121,886.64 = 77,033.52 : x
  2. Step 2: Convert to fraction form
    88,435.08/121,886.64 = 77,033.52/x
  3. Step 3: Cross multiply
    88,435.08x = 121,886.64 × 77,033.52
  4. Step 4: Simplify right side
    88,435.08x = 9,389,356,920.17
  5. Step 5: Solve for x
    x = 9,389,356,920.17/88,435.08
  6. Step 6: Final answer
    x = 106,172.31

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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.