Home / 77,012.10-115,555.14-37,547.69

Finding the Fourth Proportional to 77,012.10, 115,555.14 and 37,547.69

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Solution

The fourth proportional to 77,012.10, 115,555.14 and 37,547.69 is: 56,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,012.10 : 115,555.14 = 37,547.69 : x
  2. Step 2: Convert to fraction form
    77,012.10/115,555.14 = 37,547.69/x
  3. Step 3: Cross multiply
    77,012.10x = 115,555.14 × 37,547.69
  4. Step 4: Simplify right side
    77,012.10x = 4,338,827,996.85
  5. Step 5: Solve for x
    x = 4,338,827,996.85/77,012.10
  6. Step 6: Final answer
    x = 56,339.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.