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Finding the Fourth Proportional to 73,409.53, 101,303.43 and 42,780.67

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Solution

The fourth proportional to 73,409.53, 101,303.43 and 42,780.67 is: 59,036.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,409.53 : 101,303.43 = 42,780.67 : x
  2. Step 2: Convert to fraction form
    73,409.53/101,303.43 = 42,780.67/x
  3. Step 3: Cross multiply
    73,409.53x = 101,303.43 × 42,780.67
  4. Step 4: Simplify right side
    73,409.53x = 4,333,828,608.70
  5. Step 5: Solve for x
    x = 4,333,828,608.70/73,409.53
  6. Step 6: Final answer
    x = 59,036.32

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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.