Home / 77,000.10-115,586.55-59,547.30

Finding the Fourth Proportional to 77,000.10, 115,586.55 and 59,547.30

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Solution

The fourth proportional to 77,000.10, 115,586.55 and 59,547.30 is: 89,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,000.10 : 115,586.55 = 59,547.30 : x
  2. Step 2: Convert to fraction form
    77,000.10/115,586.55 = 59,547.30/x
  3. Step 3: Cross multiply
    77,000.10x = 115,586.55 × 59,547.30
  4. Step 4: Simplify right side
    77,000.10x = 6,882,866,968.82
  5. Step 5: Solve for x
    x = 6,882,866,968.82/77,000.10
  6. Step 6: Final answer
    x = 89,387.77

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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.