Home / 74,055.85-102,155.51-45,389.39

Finding the Fourth Proportional to 74,055.85, 102,155.51 and 45,389.39

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Solution

The fourth proportional to 74,055.85, 102,155.51 and 45,389.39 is: 62,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,055.85 : 102,155.51 = 45,389.39 : x
  2. Step 2: Convert to fraction form
    74,055.85/102,155.51 = 45,389.39/x
  3. Step 3: Cross multiply
    74,055.85x = 102,155.51 × 45,389.39
  4. Step 4: Simplify right side
    74,055.85x = 4,636,775,886.73
  5. Step 5: Solve for x
    x = 4,636,775,886.73/74,055.85
  6. Step 6: Final answer
    x = 62,611.88

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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.