Home / 70,397.18-97,152.76-40,188.64

Finding the Fourth Proportional to 70,397.18, 97,152.76 and 40,188.64

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Solution

The fourth proportional to 70,397.18, 97,152.76 and 40,188.64 is: 55,462.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.18 : 97,152.76 = 40,188.64 : x
  2. Step 2: Convert to fraction form
    70,397.18/97,152.76 = 40,188.64/x
  3. Step 3: Cross multiply
    70,397.18x = 97,152.76 × 40,188.64
  4. Step 4: Simplify right side
    70,397.18x = 3,904,437,296.65
  5. Step 5: Solve for x
    x = 3,904,437,296.65/70,397.18
  6. Step 6: Final answer
    x = 55,462.98

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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.