Home / 93,018.20-139,549.16-30,688.70

Finding the Fourth Proportional to 93,018.20, 139,549.16 and 30,688.70

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Solution

The fourth proportional to 93,018.20, 139,549.16 and 30,688.70 is: 46,040.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,018.20 : 139,549.16 = 30,688.70 : x
  2. Step 2: Convert to fraction form
    93,018.20/139,549.16 = 30,688.70/x
  3. Step 3: Cross multiply
    93,018.20x = 139,549.16 × 30,688.70
  4. Step 4: Simplify right side
    93,018.20x = 4,282,581,455.30
  5. Step 5: Solve for x
    x = 4,282,581,455.30/93,018.20
  6. Step 6: Final answer
    x = 46,040.26

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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.