Home / 74,520.43-102,852.80-42,710.65

Finding the Fourth Proportional to 74,520.43, 102,852.80 and 42,710.65

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Solution

The fourth proportional to 74,520.43, 102,852.80 and 42,710.65 is: 58,949.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,520.43 : 102,852.80 = 42,710.65 : x
  2. Step 2: Convert to fraction form
    74,520.43/102,852.80 = 42,710.65/x
  3. Step 3: Cross multiply
    74,520.43x = 102,852.80 × 42,710.65
  4. Step 4: Simplify right side
    74,520.43x = 4,392,909,728.77
  5. Step 5: Solve for x
    x = 4,392,909,728.77/74,520.43
  6. Step 6: Final answer
    x = 58,949.07

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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.