Home / 65,465.47-90,349.05-38,616.67

Finding the Fourth Proportional to 65,465.47, 90,349.05 and 38,616.67

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Solution

The fourth proportional to 65,465.47, 90,349.05 and 38,616.67 is: 53,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,465.47 : 90,349.05 = 38,616.67 : x
  2. Step 2: Convert to fraction form
    65,465.47/90,349.05 = 38,616.67/x
  3. Step 3: Cross multiply
    65,465.47x = 90,349.05 × 38,616.67
  4. Step 4: Simplify right side
    65,465.47x = 3,488,979,448.66
  5. Step 5: Solve for x
    x = 3,488,979,448.66/65,465.47
  6. Step 6: Final answer
    x = 53,294.96

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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.