Home / 70,400.07-97,152.09-42,105.75

Finding the Fourth Proportional to 70,400.07, 97,152.09 and 42,105.75

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Solution

The fourth proportional to 70,400.07, 97,152.09 and 42,105.75 is: 58,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.07 : 97,152.09 = 42,105.75 : x
  2. Step 2: Convert to fraction form
    70,400.07/97,152.09 = 42,105.75/x
  3. Step 3: Cross multiply
    70,400.07x = 97,152.09 × 42,105.75
  4. Step 4: Simplify right side
    70,400.07x = 4,090,661,613.52
  5. Step 5: Solve for x
    x = 4,090,661,613.52/70,400.07
  6. Step 6: Final answer
    x = 58,105.93

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1.5x scale

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.