Home / 51,153.87-70,595.88-31,011.60

Finding the Fourth Proportional to 51,153.87, 70,595.88 and 31,011.60

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Solution

The fourth proportional to 51,153.87, 70,595.88 and 31,011.60 is: 42,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,153.87 : 70,595.88 = 31,011.60 : x
  2. Step 2: Convert to fraction form
    51,153.87/70,595.88 = 31,011.60/x
  3. Step 3: Cross multiply
    51,153.87x = 70,595.88 × 31,011.60
  4. Step 4: Simplify right side
    51,153.87x = 2,189,291,192.21
  5. Step 5: Solve for x
    x = 2,189,291,192.21/51,153.87
  6. Step 6: Final answer
    x = 42,798.15

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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.