Home / 85,632.36-118,133.25-55,427.40

Finding the Fourth Proportional to 85,632.36, 118,133.25 and 55,427.40

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Solution

The fourth proportional to 85,632.36, 118,133.25 and 55,427.40 is: 76,464.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,632.36 : 118,133.25 = 55,427.40 : x
  2. Step 2: Convert to fraction form
    85,632.36/118,133.25 = 55,427.40/x
  3. Step 3: Cross multiply
    85,632.36x = 118,133.25 × 55,427.40
  4. Step 4: Simplify right side
    85,632.36x = 6,547,818,901.05
  5. Step 5: Solve for x
    x = 6,547,818,901.05/85,632.36
  6. Step 6: Final answer
    x = 76,464.31

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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.