Home / 86,289.02-129,379.92-36,343.40

Finding the Fourth Proportional to 86,289.02, 129,379.92 and 36,343.40

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Solution

The fourth proportional to 86,289.02, 129,379.92 and 36,343.40 is: 54,492.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,289.02 : 129,379.92 = 36,343.40 : x
  2. Step 2: Convert to fraction form
    86,289.02/129,379.92 = 36,343.40/x
  3. Step 3: Cross multiply
    86,289.02x = 129,379.92 × 36,343.40
  4. Step 4: Simplify right side
    86,289.02x = 4,702,106,184.53
  5. Step 5: Solve for x
    x = 4,702,106,184.53/86,289.02
  6. Step 6: Final answer
    x = 54,492.52

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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.