Home / 81,548.16-112,432.32-52,817.08

Finding the Fourth Proportional to 81,548.16, 112,432.32 and 52,817.08

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Solution

The fourth proportional to 81,548.16, 112,432.32 and 52,817.08 is: 72,820.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,548.16 : 112,432.32 = 52,817.08 : x
  2. Step 2: Convert to fraction form
    81,548.16/112,432.32 = 52,817.08/x
  3. Step 3: Cross multiply
    81,548.16x = 112,432.32 × 52,817.08
  4. Step 4: Simplify right side
    81,548.16x = 5,938,346,840.03
  5. Step 5: Solve for x
    x = 5,938,346,840.03/81,548.16
  6. Step 6: Final answer
    x = 72,820.12

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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.