Home / 86,683.02-130,042.36-39,275.34

Finding the Fourth Proportional to 86,683.02, 130,042.36 and 39,275.34

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Solution

The fourth proportional to 86,683.02, 130,042.36 and 39,275.34 is: 58,921.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,683.02 : 130,042.36 = 39,275.34 : x
  2. Step 2: Convert to fraction form
    86,683.02/130,042.36 = 39,275.34/x
  3. Step 3: Cross multiply
    86,683.02x = 130,042.36 × 39,275.34
  4. Step 4: Simplify right side
    86,683.02x = 5,107,457,903.40
  5. Step 5: Solve for x
    x = 5,107,457,903.40/86,683.02
  6. Step 6: Final answer
    x = 58,921.09

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1.5x scale

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.