Home / 85,437.39-117,903.50-47,711.67

Finding the Fourth Proportional to 85,437.39, 117,903.50 and 47,711.67

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Solution

The fourth proportional to 85,437.39, 117,903.50 and 47,711.67 is: 65,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,437.39 : 117,903.50 = 47,711.67 : x
  2. Step 2: Convert to fraction form
    85,437.39/117,903.50 = 47,711.67/x
  3. Step 3: Cross multiply
    85,437.39x = 117,903.50 × 47,711.67
  4. Step 4: Simplify right side
    85,437.39x = 5,625,372,413.61
  5. Step 5: Solve for x
    x = 5,625,372,413.61/85,437.39
  6. Step 6: Final answer
    x = 65,842.05

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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.