Home / 86,047.41-118,779.30-54,210.36

Finding the Fourth Proportional to 86,047.41, 118,779.30 and 54,210.36

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Solution

The fourth proportional to 86,047.41, 118,779.30 and 54,210.36 is: 74,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,047.41 : 118,779.30 = 54,210.36 : x
  2. Step 2: Convert to fraction form
    86,047.41/118,779.30 = 54,210.36/x
  3. Step 3: Cross multiply
    86,047.41x = 118,779.30 × 54,210.36
  4. Step 4: Simplify right side
    86,047.41x = 6,439,068,613.55
  5. Step 5: Solve for x
    x = 6,439,068,613.55/86,047.41
  6. Step 6: Final answer
    x = 74,831.64

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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.