Home / 56,417.16-77,678.40-47,902.44

Finding the Fourth Proportional to 56,417.16, 77,678.40 and 47,902.44

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Solution

The fourth proportional to 56,417.16, 77,678.40 and 47,902.44 is: 65,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,417.16 : 77,678.40 = 47,902.44 : x
  2. Step 2: Convert to fraction form
    56,417.16/77,678.40 = 47,902.44/x
  3. Step 3: Cross multiply
    56,417.16x = 77,678.40 × 47,902.44
  4. Step 4: Simplify right side
    56,417.16x = 3,720,984,895.30
  5. Step 5: Solve for x
    x = 3,720,984,895.30/56,417.16
  6. Step 6: Final answer
    x = 65,954.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.