Home / 93,020.79-139,528.02-40,430.28

Finding the Fourth Proportional to 93,020.79, 139,528.02 and 40,430.28

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Solution

The fourth proportional to 93,020.79, 139,528.02 and 40,430.28 is: 60,644.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,020.79 : 139,528.02 = 40,430.28 : x
  2. Step 2: Convert to fraction form
    93,020.79/139,528.02 = 40,430.28/x
  3. Step 3: Cross multiply
    93,020.79x = 139,528.02 × 40,430.28
  4. Step 4: Simplify right side
    93,020.79x = 5,641,156,916.45
  5. Step 5: Solve for x
    x = 5,641,156,916.45/93,020.79
  6. Step 6: Final answer
    x = 60,644.04

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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.