Home / 86,703.45-130,055.18-42,416.70

Finding the Fourth Proportional to 86,703.45, 130,055.18 and 42,416.70

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Solution

The fourth proportional to 86,703.45, 130,055.18 and 42,416.70 is: 63,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.45 : 130,055.18 = 42,416.70 : x
  2. Step 2: Convert to fraction form
    86,703.45/130,055.18 = 42,416.70/x
  3. Step 3: Cross multiply
    86,703.45x = 130,055.18 × 42,416.70
  4. Step 4: Simplify right side
    86,703.45x = 5,516,511,341.42
  5. Step 5: Solve for x
    x = 5,516,511,341.42/86,703.45
  6. Step 6: Final answer
    x = 63,625.05

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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.