Home / 51,539.10-77,330.66-21,970.86

Finding the Fourth Proportional to 51,539.10, 77,330.66 and 21,970.86

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Solution

The fourth proportional to 51,539.10, 77,330.66 and 21,970.86 is: 32,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,539.10 : 77,330.66 = 21,970.86 : x
  2. Step 2: Convert to fraction form
    51,539.10/77,330.66 = 21,970.86/x
  3. Step 3: Cross multiply
    51,539.10x = 77,330.66 × 21,970.86
  4. Step 4: Simplify right side
    51,539.10x = 1,699,020,994.71
  5. Step 5: Solve for x
    x = 1,699,020,994.71/51,539.10
  6. Step 6: Final answer
    x = 32,965.67

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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.