Home / 77,156.72-106,445.85-48,459.50

Finding the Fourth Proportional to 77,156.72, 106,445.85 and 48,459.50

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Solution

The fourth proportional to 77,156.72, 106,445.85 and 48,459.50 is: 66,855.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,156.72 : 106,445.85 = 48,459.50 : x
  2. Step 2: Convert to fraction form
    77,156.72/106,445.85 = 48,459.50/x
  3. Step 3: Cross multiply
    77,156.72x = 106,445.85 × 48,459.50
  4. Step 4: Simplify right side
    77,156.72x = 5,158,312,668.08
  5. Step 5: Solve for x
    x = 5,158,312,668.08/77,156.72
  6. Step 6: Final answer
    x = 66,855.00

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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.