Home / 71,428.65-98,551.59-56,274.35

Finding the Fourth Proportional to 71,428.65, 98,551.59 and 56,274.35

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Solution

The fourth proportional to 71,428.65, 98,551.59 and 56,274.35 is: 77,642.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,428.65 : 98,551.59 = 56,274.35 : x
  2. Step 2: Convert to fraction form
    71,428.65/98,551.59 = 56,274.35/x
  3. Step 3: Cross multiply
    71,428.65x = 98,551.59 × 56,274.35
  4. Step 4: Simplify right side
    71,428.65x = 5,545,925,964.93
  5. Step 5: Solve for x
    x = 5,545,925,964.93/71,428.65
  6. Step 6: Final answer
    x = 77,642.88

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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.