Home / 70,530.16-97,337.78-38,705.28

Finding the Fourth Proportional to 70,530.16, 97,337.78 and 38,705.28

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Solution

The fourth proportional to 70,530.16, 97,337.78 and 38,705.28 is: 53,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530.16 : 97,337.78 = 38,705.28 : x
  2. Step 2: Convert to fraction form
    70,530.16/97,337.78 = 38,705.28/x
  3. Step 3: Cross multiply
    70,530.16x = 97,337.78 × 38,705.28
  4. Step 4: Simplify right side
    70,530.16x = 3,767,486,029.48
  5. Step 5: Solve for x
    x = 3,767,486,029.48/70,530.16
  6. Step 6: Final answer
    x = 53,416.67

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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.