Home / 86,946.40-130,419.60-55,842.40

Finding the Fourth Proportional to 86,946.40, 130,419.60 and 55,842.40

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Solution

The fourth proportional to 86,946.40, 130,419.60 and 55,842.40 is: 83,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,946.40 : 130,419.60 = 55,842.40 : x
  2. Step 2: Convert to fraction form
    86,946.40/130,419.60 = 55,842.40/x
  3. Step 3: Cross multiply
    86,946.40x = 130,419.60 × 55,842.40
  4. Step 4: Simplify right side
    86,946.40x = 7,282,943,471.04
  5. Step 5: Solve for x
    x = 7,282,943,471.04/86,946.40
  6. Step 6: Final answer
    x = 83,763.60

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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.