Home / 52,621.19-78,547.93-45,978.11

Finding the Fourth Proportional to 52,621.19, 78,547.93 and 45,978.11

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Solution

The fourth proportional to 52,621.19, 78,547.93 and 45,978.11 is: 68,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,621.19 : 78,547.93 = 45,978.11 : x
  2. Step 2: Convert to fraction form
    52,621.19/78,547.93 = 45,978.11/x
  3. Step 3: Cross multiply
    52,621.19x = 78,547.93 × 45,978.11
  4. Step 4: Simplify right side
    52,621.19x = 3,611,485,135.92
  5. Step 5: Solve for x
    x = 3,611,485,135.92/52,621.19
  6. Step 6: Final answer
    x = 68,631.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.