Home / 74,159.79-102,312.27-54,825.13

Finding the Fourth Proportional to 74,159.79, 102,312.27 and 54,825.13

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Solution

The fourth proportional to 74,159.79, 102,312.27 and 54,825.13 is: 75,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.79 : 102,312.27 = 54,825.13 : x
  2. Step 2: Convert to fraction form
    74,159.79/102,312.27 = 54,825.13/x
  3. Step 3: Cross multiply
    74,159.79x = 102,312.27 × 54,825.13
  4. Step 4: Simplify right side
    74,159.79x = 5,609,283,425.64
  5. Step 5: Solve for x
    x = 5,609,283,425.64/74,159.79
  6. Step 6: Final answer
    x = 75,637.80

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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.