Home / 74,172.24-102,358.08-40,638.24

Finding the Fourth Proportional to 74,172.24, 102,358.08 and 40,638.24

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Solution

The fourth proportional to 74,172.24, 102,358.08 and 40,638.24 is: 56,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.24 : 102,358.08 = 40,638.24 : x
  2. Step 2: Convert to fraction form
    74,172.24/102,358.08 = 40,638.24/x
  3. Step 3: Cross multiply
    74,172.24x = 102,358.08 × 40,638.24
  4. Step 4: Simplify right side
    74,172.24x = 4,159,652,220.98
  5. Step 5: Solve for x
    x = 4,159,652,220.98/74,172.24
  6. Step 6: Final answer
    x = 56,080.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.