Home / 86,929.47-130,394.20-47,465.05

Finding the Fourth Proportional to 86,929.47, 130,394.20 and 47,465.05

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Solution

The fourth proportional to 86,929.47, 130,394.20 and 47,465.05 is: 71,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,929.47 : 130,394.20 = 47,465.05 : x
  2. Step 2: Convert to fraction form
    86,929.47/130,394.20 = 47,465.05/x
  3. Step 3: Cross multiply
    86,929.47x = 130,394.20 × 47,465.05
  4. Step 4: Simplify right side
    86,929.47x = 6,189,167,222.71
  5. Step 5: Solve for x
    x = 6,189,167,222.71/86,929.47
  6. Step 6: Final answer
    x = 71,197.58

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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.