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Finding the Fourth Proportional to 74,500.06, 102,810.09 and 40,966.06

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Solution

The fourth proportional to 74,500.06, 102,810.09 and 40,966.06 is: 56,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,500.06 : 102,810.09 = 40,966.06 : x
  2. Step 2: Convert to fraction form
    74,500.06/102,810.09 = 40,966.06/x
  3. Step 3: Cross multiply
    74,500.06x = 102,810.09 × 40,966.06
  4. Step 4: Simplify right side
    74,500.06x = 4,211,724,315.55
  5. Step 5: Solve for x
    x = 4,211,724,315.55/74,500.06
  6. Step 6: Final answer
    x = 56,533.17

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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.