Home / 70,330.16-105,403.55-61,424.36

Finding the Fourth Proportional to 70,330.16, 105,403.55 and 61,424.36

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Solution

The fourth proportional to 70,330.16, 105,403.55 and 61,424.36 is: 92,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,330.16 : 105,403.55 = 61,424.36 : x
  2. Step 2: Convert to fraction form
    70,330.16/105,403.55 = 61,424.36/x
  3. Step 3: Cross multiply
    70,330.16x = 105,403.55 × 61,424.36
  4. Step 4: Simplify right side
    70,330.16x = 6,474,344,766.34
  5. Step 5: Solve for x
    x = 6,474,344,766.34/70,330.16
  6. Step 6: Final answer
    x = 92,056.46

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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.