Home / 92,719.95-139,071.83-30,390.45

Finding the Fourth Proportional to 92,719.95, 139,071.83 and 30,390.45

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Solution

The fourth proportional to 92,719.95, 139,071.83 and 30,390.45 is: 45,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,719.95 : 139,071.83 = 30,390.45 : x
  2. Step 2: Convert to fraction form
    92,719.95/139,071.83 = 30,390.45/x
  3. Step 3: Cross multiply
    92,719.95x = 139,071.83 × 30,390.45
  4. Step 4: Simplify right side
    92,719.95x = 4,226,455,344.07
  5. Step 5: Solve for x
    x = 4,226,455,344.07/92,719.95
  6. Step 6: Final answer
    x = 45,583.02

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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.