Home / 86,434.48-129,650.42-52,710.40

Finding the Fourth Proportional to 86,434.48, 129,650.42 and 52,710.40

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Solution

The fourth proportional to 86,434.48, 129,650.42 and 52,710.40 is: 79,064.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,434.48 : 129,650.42 = 52,710.40 : x
  2. Step 2: Convert to fraction form
    86,434.48/129,650.42 = 52,710.40/x
  3. Step 3: Cross multiply
    86,434.48x = 129,650.42 × 52,710.40
  4. Step 4: Simplify right side
    86,434.48x = 6,833,925,498.37
  5. Step 5: Solve for x
    x = 6,833,925,498.37/86,434.48
  6. Step 6: Final answer
    x = 79,064.81

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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.