Home / 86,656.28-130,032.48-42,283.40

Finding the Fourth Proportional to 86,656.28, 130,032.48 and 42,283.40

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Solution

The fourth proportional to 86,656.28, 130,032.48 and 42,283.40 is: 63,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,656.28 : 130,032.48 = 42,283.40 : x
  2. Step 2: Convert to fraction form
    86,656.28/130,032.48 = 42,283.40/x
  3. Step 3: Cross multiply
    86,656.28x = 130,032.48 × 42,283.40
  4. Step 4: Simplify right side
    86,656.28x = 5,498,215,364.83
  5. Step 5: Solve for x
    x = 5,498,215,364.83/86,656.28
  6. Step 6: Final answer
    x = 63,448.55

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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.