Home / 63,030.38-86,980.32-34,350.78

Finding the Fourth Proportional to 63,030.38, 86,980.32 and 34,350.78

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Solution

The fourth proportional to 63,030.38, 86,980.32 and 34,350.78 is: 47,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,030.38 : 86,980.32 = 34,350.78 : x
  2. Step 2: Convert to fraction form
    63,030.38/86,980.32 = 34,350.78/x
  3. Step 3: Cross multiply
    63,030.38x = 86,980.32 × 34,350.78
  4. Step 4: Simplify right side
    63,030.38x = 2,987,841,836.65
  5. Step 5: Solve for x
    x = 2,987,841,836.65/63,030.38
  6. Step 6: Final answer
    x = 47,403.20

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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.