Home / 51,848.20-77,772.30-47,547.40

Finding the Fourth Proportional to 51,848.20, 77,772.30 and 47,547.40

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Solution

The fourth proportional to 51,848.20, 77,772.30 and 47,547.40 is: 71,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,848.20 : 77,772.30 = 47,547.40 : x
  2. Step 2: Convert to fraction form
    51,848.20/77,772.30 = 47,547.40/x
  3. Step 3: Cross multiply
    51,848.20x = 77,772.30 × 47,547.40
  4. Step 4: Simplify right side
    51,848.20x = 3,697,870,657.02
  5. Step 5: Solve for x
    x = 3,697,870,657.02/51,848.20
  6. Step 6: Final answer
    x = 71,321.10

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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.