Home / 86,870.52-130,307.04-34,279.50

Finding the Fourth Proportional to 86,870.52, 130,307.04 and 34,279.50

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Solution

The fourth proportional to 86,870.52, 130,307.04 and 34,279.50 is: 51,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,870.52 : 130,307.04 = 34,279.50 : x
  2. Step 2: Convert to fraction form
    86,870.52/130,307.04 = 34,279.50/x
  3. Step 3: Cross multiply
    86,870.52x = 130,307.04 × 34,279.50
  4. Step 4: Simplify right side
    86,870.52x = 4,466,860,177.68
  5. Step 5: Solve for x
    x = 4,466,860,177.68/86,870.52
  6. Step 6: Final answer
    x = 51,419.75

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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.