Home / 99,638.16-149,490.06-40,457.94

Finding the Fourth Proportional to 99,638.16, 149,490.06 and 40,457.94

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Solution

The fourth proportional to 99,638.16, 149,490.06 and 40,457.94 is: 60,700.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,638.16 : 149,490.06 = 40,457.94 : x
  2. Step 2: Convert to fraction form
    99,638.16/149,490.06 = 40,457.94/x
  3. Step 3: Cross multiply
    99,638.16x = 149,490.06 × 40,457.94
  4. Step 4: Simplify right side
    99,638.16x = 6,048,059,878.08
  5. Step 5: Solve for x
    x = 6,048,059,878.08/99,638.16
  6. Step 6: Final answer
    x = 60,700.24

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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.