Home / 74,562.54-112,030.64-70,078.50

Finding the Fourth Proportional to 74,562.54, 112,030.64 and 70,078.50

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Solution

The fourth proportional to 74,562.54, 112,030.64 and 70,078.50 is: 105,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,562.54 : 112,030.64 = 70,078.50 : x
  2. Step 2: Convert to fraction form
    74,562.54/112,030.64 = 70,078.50/x
  3. Step 3: Cross multiply
    74,562.54x = 112,030.64 × 70,078.50
  4. Step 4: Simplify right side
    74,562.54x = 7,850,939,327.70
  5. Step 5: Solve for x
    x = 7,850,939,327.70/74,562.54
  6. Step 6: Final answer
    x = 105,293.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.