Home / 88,120.90-121,626.53-54,130.06

Finding the Fourth Proportional to 88,120.90, 121,626.53 and 54,130.06

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Solution

The fourth proportional to 88,120.90, 121,626.53 and 54,130.06 is: 74,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,120.90 : 121,626.53 = 54,130.06 : x
  2. Step 2: Convert to fraction form
    88,120.90/121,626.53 = 54,130.06/x
  3. Step 3: Cross multiply
    88,120.90x = 121,626.53 × 54,130.06
  4. Step 4: Simplify right side
    88,120.90x = 6,583,651,366.49
  5. Step 5: Solve for x
    x = 6,583,651,366.49/88,120.90
  6. Step 6: Final answer
    x = 74,711.58

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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.