Home / 86,038.03-118,775.64-53,790.55

Finding the Fourth Proportional to 86,038.03, 118,775.64 and 53,790.55

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Solution

The fourth proportional to 86,038.03, 118,775.64 and 53,790.55 is: 74,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,038.03 : 118,775.64 = 53,790.55 : x
  2. Step 2: Convert to fraction form
    86,038.03/118,775.64 = 53,790.55/x
  3. Step 3: Cross multiply
    86,038.03x = 118,775.64 × 53,790.55
  4. Step 4: Simplify right side
    86,038.03x = 6,389,007,002.20
  5. Step 5: Solve for x
    x = 6,389,007,002.20/86,038.03
  6. Step 6: Final answer
    x = 74,257.94

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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.