Home / 92,821.55-128,071.79-52,535.32

Finding the Fourth Proportional to 92,821.55, 128,071.79 and 52,535.32

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Solution

The fourth proportional to 92,821.55, 128,071.79 and 52,535.32 is: 72,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,821.55 : 128,071.79 = 52,535.32 : x
  2. Step 2: Convert to fraction form
    92,821.55/128,071.79 = 52,535.32/x
  3. Step 3: Cross multiply
    92,821.55x = 128,071.79 × 52,535.32
  4. Step 4: Simplify right side
    92,821.55x = 6,728,292,470.62
  5. Step 5: Solve for x
    x = 6,728,292,470.62/92,821.55
  6. Step 6: Final answer
    x = 72,486.32

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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.