Home / 74,981.67-112,416.93-45,392.52

Finding the Fourth Proportional to 74,981.67, 112,416.93 and 45,392.52

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Solution

The fourth proportional to 74,981.67, 112,416.93 and 45,392.52 is: 68,055.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,981.67 : 112,416.93 = 45,392.52 : x
  2. Step 2: Convert to fraction form
    74,981.67/112,416.93 = 45,392.52/x
  3. Step 3: Cross multiply
    74,981.67x = 112,416.93 × 45,392.52
  4. Step 4: Simplify right side
    74,981.67x = 5,102,887,743.36
  5. Step 5: Solve for x
    x = 5,102,887,743.36/74,981.67
  6. Step 6: Final answer
    x = 68,055.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.