Home / 70,723.31-97,555.32-42,032.90

Finding the Fourth Proportional to 70,723.31, 97,555.32 and 42,032.90

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Solution

The fourth proportional to 70,723.31, 97,555.32 and 42,032.90 is: 57,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,723.31 : 97,555.32 = 42,032.90 : x
  2. Step 2: Convert to fraction form
    70,723.31/97,555.32 = 42,032.90/x
  3. Step 3: Cross multiply
    70,723.31x = 97,555.32 × 42,032.90
  4. Step 4: Simplify right side
    70,723.31x = 4,100,533,253.92
  5. Step 5: Solve for x
    x = 4,100,533,253.92/70,723.31
  6. Step 6: Final answer
    x = 57,979.94

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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.