Home / 86,641.65-130,190.90-46,690.29

Finding the Fourth Proportional to 86,641.65, 130,190.90 and 46,690.29

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Solution

The fourth proportional to 86,641.65, 130,190.90 and 46,690.29 is: 70,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,641.65 : 130,190.90 = 46,690.29 : x
  2. Step 2: Convert to fraction form
    86,641.65/130,190.90 = 46,690.29/x
  3. Step 3: Cross multiply
    86,641.65x = 130,190.90 × 46,690.29
  4. Step 4: Simplify right side
    86,641.65x = 6,078,650,642.91
  5. Step 5: Solve for x
    x = 6,078,650,642.91/86,641.65
  6. Step 6: Final answer
    x = 70,158.53

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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.