Home / 70,364.37-105,547.10-20,447.85

Finding the Fourth Proportional to 70,364.37, 105,547.10 and 20,447.85

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Solution

The fourth proportional to 70,364.37, 105,547.10 and 20,447.85 is: 30,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,364.37 : 105,547.10 = 20,447.85 : x
  2. Step 2: Convert to fraction form
    70,364.37/105,547.10 = 20,447.85/x
  3. Step 3: Cross multiply
    70,364.37x = 105,547.10 × 20,447.85
  4. Step 4: Simplify right side
    70,364.37x = 2,158,211,166.50
  5. Step 5: Solve for x
    x = 2,158,211,166.50/70,364.37
  6. Step 6: Final answer
    x = 30,671.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.