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Finding the Fourth Proportional to 70,718.43, 97,594.06 and 42,418.65

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Solution

The fourth proportional to 70,718.43, 97,594.06 and 42,418.65 is: 58,539.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,718.43 : 97,594.06 = 42,418.65 : x
  2. Step 2: Convert to fraction form
    70,718.43/97,594.06 = 42,418.65/x
  3. Step 3: Cross multiply
    70,718.43x = 97,594.06 × 42,418.65
  4. Step 4: Simplify right side
    70,718.43x = 4,139,808,273.22
  5. Step 5: Solve for x
    x = 4,139,808,273.22/70,718.43
  6. Step 6: Final answer
    x = 58,539.31

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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.