Home / 86,255.28-129,279.24-46,810.80

Finding the Fourth Proportional to 86,255.28, 129,279.24 and 46,810.80

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Solution

The fourth proportional to 86,255.28, 129,279.24 and 46,810.80 is: 70,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,255.28 : 129,279.24 = 46,810.80 : x
  2. Step 2: Convert to fraction form
    86,255.28/129,279.24 = 46,810.80/x
  3. Step 3: Cross multiply
    86,255.28x = 129,279.24 × 46,810.80
  4. Step 4: Simplify right side
    86,255.28x = 6,051,664,647.79
  5. Step 5: Solve for x
    x = 6,051,664,647.79/86,255.28
  6. Step 6: Final answer
    x = 70,159.93

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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.