Home / 74,322.50-102,564.53-40,330.12

Finding the Fourth Proportional to 74,322.50, 102,564.53 and 40,330.12

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Solution

The fourth proportional to 74,322.50, 102,564.53 and 40,330.12 is: 55,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,322.50 : 102,564.53 = 40,330.12 : x
  2. Step 2: Convert to fraction form
    74,322.50/102,564.53 = 40,330.12/x
  3. Step 3: Cross multiply
    74,322.50x = 102,564.53 × 40,330.12
  4. Step 4: Simplify right side
    74,322.50x = 4,136,439,802.64
  5. Step 5: Solve for x
    x = 4,136,439,802.64/74,322.50
  6. Step 6: Final answer
    x = 55,655.28

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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.