Home / 47,205.12-70,353.60-45,235.20

Finding the Fourth Proportional to 47,205.12, 70,353.60 and 45,235.20

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Solution

The fourth proportional to 47,205.12, 70,353.60 and 45,235.20 is: 67,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,205.12 : 70,353.60 = 45,235.20 : x
  2. Step 2: Convert to fraction form
    47,205.12/70,353.60 = 45,235.20/x
  3. Step 3: Cross multiply
    47,205.12x = 70,353.60 × 45,235.20
  4. Step 4: Simplify right side
    47,205.12x = 3,182,459,166.72
  5. Step 5: Solve for x
    x = 3,182,459,166.72/47,205.12
  6. Step 6: Final answer
    x = 67,417.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.