Home / 85,707.59-118,237.23-55,502.64

Finding the Fourth Proportional to 85,707.59, 118,237.23 and 55,502.64

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Solution

The fourth proportional to 85,707.59, 118,237.23 and 55,502.64 is: 76,568.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,707.59 : 118,237.23 = 55,502.64 : x
  2. Step 2: Convert to fraction form
    85,707.59/118,237.23 = 55,502.64/x
  3. Step 3: Cross multiply
    85,707.59x = 118,237.23 × 55,502.64
  4. Step 4: Simplify right side
    85,707.59x = 6,562,478,411.29
  5. Step 5: Solve for x
    x = 6,562,478,411.29/85,707.59
  6. Step 6: Final answer
    x = 76,568.23

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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.