Home / 86,909.04-130,263.72-36,915.12

Finding the Fourth Proportional to 86,909.04, 130,263.72 and 36,915.12

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Solution

The fourth proportional to 86,909.04, 130,263.72 and 36,915.12 is: 55,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909.04 : 130,263.72 = 36,915.12 : x
  2. Step 2: Convert to fraction form
    86,909.04/130,263.72 = 36,915.12/x
  3. Step 3: Cross multiply
    86,909.04x = 130,263.72 × 36,915.12
  4. Step 4: Simplify right side
    86,909.04x = 4,808,700,855.45
  5. Step 5: Solve for x
    x = 4,808,700,855.45/86,909.04
  6. Step 6: Final answer
    x = 55,330.27

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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.