Home / 70,460.75-105,550.29-42,365.40

Finding the Fourth Proportional to 70,460.75, 105,550.29 and 42,365.40

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Solution

The fourth proportional to 70,460.75, 105,550.29 and 42,365.40 is: 63,463.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,460.75 : 105,550.29 = 42,365.40 : x
  2. Step 2: Convert to fraction form
    70,460.75/105,550.29 = 42,365.40/x
  3. Step 3: Cross multiply
    70,460.75x = 105,550.29 × 42,365.40
  4. Step 4: Simplify right side
    70,460.75x = 4,471,679,860.15
  5. Step 5: Solve for x
    x = 4,471,679,860.15/70,460.75
  6. Step 6: Final answer
    x = 63,463.41

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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.