Home / 74,105.76-102,271.80-42,267.36

Finding the Fourth Proportional to 74,105.76, 102,271.80 and 42,267.36

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Solution

The fourth proportional to 74,105.76, 102,271.80 and 42,267.36 is: 58,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,105.76 : 102,271.80 = 42,267.36 : x
  2. Step 2: Convert to fraction form
    74,105.76/102,271.80 = 42,267.36/x
  3. Step 3: Cross multiply
    74,105.76x = 102,271.80 × 42,267.36
  4. Step 4: Simplify right side
    74,105.76x = 4,322,758,988.45
  5. Step 5: Solve for x
    x = 4,322,758,988.45/74,105.76
  6. Step 6: Final answer
    x = 58,332.29

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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.