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Finding the Fourth Proportional to 97,419.50, 134,438.91 and 52,707.50

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Solution

The fourth proportional to 97,419.50, 134,438.91 and 52,707.50 is: 72,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,419.50 : 134,438.91 = 52,707.50 : x
  2. Step 2: Convert to fraction form
    97,419.50/134,438.91 = 52,707.50/x
  3. Step 3: Cross multiply
    97,419.50x = 134,438.91 × 52,707.50
  4. Step 4: Simplify right side
    97,419.50x = 7,085,938,848.83
  5. Step 5: Solve for x
    x = 7,085,938,848.83/97,419.50
  6. Step 6: Final answer
    x = 72,736.35

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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.