Home / 70,403.14-97,156.32-42,115.51

Finding the Fourth Proportional to 70,403.14, 97,156.32 and 42,115.51

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Solution

The fourth proportional to 70,403.14, 97,156.32 and 42,115.51 is: 58,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,403.14 : 97,156.32 = 42,115.51 : x
  2. Step 2: Convert to fraction form
    70,403.14/97,156.32 = 42,115.51/x
  3. Step 3: Cross multiply
    70,403.14x = 97,156.32 × 42,115.51
  4. Step 4: Simplify right side
    70,403.14x = 4,091,787,966.52
  5. Step 5: Solve for x
    x = 4,091,787,966.52/70,403.14
  6. Step 6: Final answer
    x = 58,119.40

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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.