Home / 66,343.39-91,643.45-53,008.16

Finding the Fourth Proportional to 66,343.39, 91,643.45 and 53,008.16

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Solution

The fourth proportional to 66,343.39, 91,643.45 and 53,008.16 is: 73,222.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,343.39 : 91,643.45 = 53,008.16 : x
  2. Step 2: Convert to fraction form
    66,343.39/91,643.45 = 53,008.16/x
  3. Step 3: Cross multiply
    66,343.39x = 91,643.45 × 53,008.16
  4. Step 4: Simplify right side
    66,343.39x = 4,857,849,937.29
  5. Step 5: Solve for x
    x = 4,857,849,937.29/66,343.39
  6. Step 6: Final answer
    x = 73,222.82

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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.