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Finding the Fourth Proportional to 70,587, 97,405.20 and 38,749.32

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Solution

The fourth proportional to 70,587, 97,405.20 and 38,749.32 is: 53,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,587 : 97,405.20 = 38,749.32 : x
  2. Step 2: Convert to fraction form
    70,587/97,405.20 = 38,749.32/x
  3. Step 3: Cross multiply
    70,587x = 97,405.20 × 38,749.32
  4. Step 4: Simplify right side
    70,587x = 3,774,385,264.46
  5. Step 5: Solve for x
    x = 3,774,385,264.46/70,587
  6. Step 6: Final answer
    x = 53,471.39

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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.