Home / 77,547.12-116,321.28-42,467.64

Finding the Fourth Proportional to 77,547.12, 116,321.28 and 42,467.64

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Solution

The fourth proportional to 77,547.12, 116,321.28 and 42,467.64 is: 63,701.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,547.12 : 116,321.28 = 42,467.64 : x
  2. Step 2: Convert to fraction form
    77,547.12/116,321.28 = 42,467.64/x
  3. Step 3: Cross multiply
    77,547.12x = 116,321.28 × 42,467.64
  4. Step 4: Simplify right side
    77,547.12x = 4,939,889,661.77
  5. Step 5: Solve for x
    x = 4,939,889,661.77/77,547.12
  6. Step 6: Final answer
    x = 63,701.79

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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.