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Finding the Fourth Proportional to 70,689.58, 97,460.64 and 57,895.62

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Solution

The fourth proportional to 70,689.58, 97,460.64 and 57,895.62 is: 79,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,689.58 : 97,460.64 = 57,895.62 : x
  2. Step 2: Convert to fraction form
    70,689.58/97,460.64 = 57,895.62/x
  3. Step 3: Cross multiply
    70,689.58x = 97,460.64 × 57,895.62
  4. Step 4: Simplify right side
    70,689.58x = 5,642,544,178.40
  5. Step 5: Solve for x
    x = 5,642,544,178.40/70,689.58
  6. Step 6: Final answer
    x = 79,821.44

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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.