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Finding the Fourth Proportional to 70,397.51, 97,150.49 and 40,187.75

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Solution

The fourth proportional to 70,397.51, 97,150.49 and 40,187.75 is: 55,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.51 : 97,150.49 = 40,187.75 : x
  2. Step 2: Convert to fraction form
    70,397.51/97,150.49 = 40,187.75/x
  3. Step 3: Cross multiply
    70,397.51x = 97,150.49 × 40,187.75
  4. Step 4: Simplify right side
    70,397.51x = 3,904,259,068.51
  5. Step 5: Solve for x
    x = 3,904,259,068.51/70,397.51
  6. Step 6: Final answer
    x = 55,460.19

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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.