Home / 65,413.42-90,258.18-38,564.35

Finding the Fourth Proportional to 65,413.42, 90,258.18 and 38,564.35

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Solution

The fourth proportional to 65,413.42, 90,258.18 and 38,564.35 is: 53,211.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,413.42 : 90,258.18 = 38,564.35 : x
  2. Step 2: Convert to fraction form
    65,413.42/90,258.18 = 38,564.35/x
  3. Step 3: Cross multiply
    65,413.42x = 90,258.18 × 38,564.35
  4. Step 4: Simplify right side
    65,413.42x = 3,480,748,043.88
  5. Step 5: Solve for x
    x = 3,480,748,043.88/65,413.42
  6. Step 6: Final answer
    x = 53,211.53

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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.