Home / 88,123.68-121,613.40-50,410.08

Finding the Fourth Proportional to 88,123.68, 121,613.40 and 50,410.08

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Solution

The fourth proportional to 88,123.68, 121,613.40 and 50,410.08 is: 69,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.68 : 121,613.40 = 50,410.08 : x
  2. Step 2: Convert to fraction form
    88,123.68/121,613.40 = 50,410.08/x
  3. Step 3: Cross multiply
    88,123.68x = 121,613.40 × 50,410.08
  4. Step 4: Simplify right side
    88,123.68x = 6,130,541,223.07
  5. Step 5: Solve for x
    x = 6,130,541,223.07/88,123.68
  6. Step 6: Final answer
    x = 69,567.47

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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.