Home / 66,539.95-99,812.25-21,560.24

Finding the Fourth Proportional to 66,539.95, 99,812.25 and 21,560.24

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Solution

The fourth proportional to 66,539.95, 99,812.25 and 21,560.24 is: 32,341.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539.95 : 99,812.25 = 21,560.24 : x
  2. Step 2: Convert to fraction form
    66,539.95/99,812.25 = 21,560.24/x
  3. Step 3: Cross multiply
    66,539.95x = 99,812.25 × 21,560.24
  4. Step 4: Simplify right side
    66,539.95x = 2,151,976,314.47
  5. Step 5: Solve for x
    x = 2,151,976,314.47/66,539.95
  6. Step 6: Final answer
    x = 32,341.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.