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Finding the Fourth Proportional to 70,774.58, 97,657.76 and 40,554.09

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Solution

The fourth proportional to 70,774.58, 97,657.76 and 40,554.09 is: 55,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,774.58 : 97,657.76 = 40,554.09 : x
  2. Step 2: Convert to fraction form
    70,774.58/97,657.76 = 40,554.09/x
  3. Step 3: Cross multiply
    70,774.58x = 97,657.76 × 40,554.09
  4. Step 4: Simplify right side
    70,774.58x = 3,960,421,588.24
  5. Step 5: Solve for x
    x = 3,960,421,588.24/70,774.58
  6. Step 6: Final answer
    x = 55,958.25

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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.