Home / 93,038.20-139,514.10-40,420.60

Finding the Fourth Proportional to 93,038.20, 139,514.10 and 40,420.60

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Solution

The fourth proportional to 93,038.20, 139,514.10 and 40,420.60 is: 60,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,038.20 : 139,514.10 = 40,420.60 : x
  2. Step 2: Convert to fraction form
    93,038.20/139,514.10 = 40,420.60/x
  3. Step 3: Cross multiply
    93,038.20x = 139,514.10 × 40,420.60
  4. Step 4: Simplify right side
    93,038.20x = 5,639,243,630.46
  5. Step 5: Solve for x
    x = 5,639,243,630.46/93,038.20
  6. Step 6: Final answer
    x = 60,612.13

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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.