Home / 86,389.16-129,415.61-48,835.63

Finding the Fourth Proportional to 86,389.16, 129,415.61 and 48,835.63

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Solution

The fourth proportional to 86,389.16, 129,415.61 and 48,835.63 is: 73,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389.16 : 129,415.61 = 48,835.63 : x
  2. Step 2: Convert to fraction form
    86,389.16/129,415.61 = 48,835.63/x
  3. Step 3: Cross multiply
    86,389.16x = 129,415.61 × 48,835.63
  4. Step 4: Simplify right side
    86,389.16x = 6,320,092,846.18
  5. Step 5: Solve for x
    x = 6,320,092,846.18/86,389.16
  6. Step 6: Final answer
    x = 73,158.40

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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.