Home / 76,798.08-105,968.46-42,799.10

Finding the Fourth Proportional to 76,798.08, 105,968.46 and 42,799.10

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Solution

The fourth proportional to 76,798.08, 105,968.46 and 42,799.10 is: 59,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,798.08 : 105,968.46 = 42,799.10 : x
  2. Step 2: Convert to fraction form
    76,798.08/105,968.46 = 42,799.10/x
  3. Step 3: Cross multiply
    76,798.08x = 105,968.46 × 42,799.10
  4. Step 4: Simplify right side
    76,798.08x = 4,535,354,716.39
  5. Step 5: Solve for x
    x = 4,535,354,716.39/76,798.08
  6. Step 6: Final answer
    x = 59,055.57

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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.