Home / 56,647.60-78,173.58-31,155.64

Finding the Fourth Proportional to 56,647.60, 78,173.58 and 31,155.64

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Solution

The fourth proportional to 56,647.60, 78,173.58 and 31,155.64 is: 42,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,647.60 : 78,173.58 = 31,155.64 : x
  2. Step 2: Convert to fraction form
    56,647.60/78,173.58 = 31,155.64/x
  3. Step 3: Cross multiply
    56,647.60x = 78,173.58 × 31,155.64
  4. Step 4: Simplify right side
    56,647.60x = 2,435,547,915.99
  5. Step 5: Solve for x
    x = 2,435,547,915.99/56,647.60
  6. Step 6: Final answer
    x = 42,994.72

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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.