Home / 74,055.56-102,155.13-45,389.12

Finding the Fourth Proportional to 74,055.56, 102,155.13 and 45,389.12

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Solution

The fourth proportional to 74,055.56, 102,155.13 and 45,389.12 is: 62,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,055.56 : 102,155.13 = 45,389.12 : x
  2. Step 2: Convert to fraction form
    74,055.56/102,155.13 = 45,389.12/x
  3. Step 3: Cross multiply
    74,055.56x = 102,155.13 × 45,389.12
  4. Step 4: Simplify right side
    74,055.56x = 4,636,730,943.41
  5. Step 5: Solve for x
    x = 4,636,730,943.41/74,055.56
  6. Step 6: Final answer
    x = 62,611.52

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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.