Home / 70,412.15-97,152.98-40,187.81

Finding the Fourth Proportional to 70,412.15, 97,152.98 and 40,187.81

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Solution

The fourth proportional to 70,412.15, 97,152.98 and 40,187.81 is: 55,450.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,412.15 : 97,152.98 = 40,187.81 : x
  2. Step 2: Convert to fraction form
    70,412.15/97,152.98 = 40,187.81/x
  3. Step 3: Cross multiply
    70,412.15x = 97,152.98 × 40,187.81
  4. Step 4: Simplify right side
    70,412.15x = 3,904,364,814.47
  5. Step 5: Solve for x
    x = 3,904,364,814.47/70,412.15
  6. Step 6: Final answer
    x = 55,450.16

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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.