Home / 71,055.42-98,056.59-38,790.30

Finding the Fourth Proportional to 71,055.42, 98,056.59 and 38,790.30

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Solution

The fourth proportional to 71,055.42, 98,056.59 and 38,790.30 is: 53,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,055.42 : 98,056.59 = 38,790.30 : x
  2. Step 2: Convert to fraction form
    71,055.42/98,056.59 = 38,790.30/x
  3. Step 3: Cross multiply
    71,055.42x = 98,056.59 × 38,790.30
  4. Step 4: Simplify right side
    71,055.42x = 3,803,644,543.08
  5. Step 5: Solve for x
    x = 3,803,644,543.08/71,055.42
  6. Step 6: Final answer
    x = 53,530.67

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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.