Home / 74,018.59-102,121.69-45,308.34

Finding the Fourth Proportional to 74,018.59, 102,121.69 and 45,308.34

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Solution

The fourth proportional to 74,018.59, 102,121.69 and 45,308.34 is: 62,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,018.59 : 102,121.69 = 45,308.34 : x
  2. Step 2: Convert to fraction form
    74,018.59/102,121.69 = 45,308.34/x
  3. Step 3: Cross multiply
    74,018.59x = 102,121.69 × 45,308.34
  4. Step 4: Simplify right side
    74,018.59x = 4,626,964,251.89
  5. Step 5: Solve for x
    x = 4,626,964,251.89/74,018.59
  6. Step 6: Final answer
    x = 62,510.84

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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.