Home / 76,666.14-105,798.47-42,674.09

Finding the Fourth Proportional to 76,666.14, 105,798.47 and 42,674.09

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Solution

The fourth proportional to 76,666.14, 105,798.47 and 42,674.09 is: 58,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,666.14 : 105,798.47 = 42,674.09 : x
  2. Step 2: Convert to fraction form
    76,666.14/105,798.47 = 42,674.09/x
  3. Step 3: Cross multiply
    76,666.14x = 105,798.47 × 42,674.09
  4. Step 4: Simplify right side
    76,666.14x = 4,514,852,688.28
  5. Step 5: Solve for x
    x = 4,514,852,688.28/76,666.14
  6. Step 6: Final answer
    x = 58,889.79

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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.