Home / 72,130.58-99,421.25-48,248.66

Finding the Fourth Proportional to 72,130.58, 99,421.25 and 48,248.66

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Solution

The fourth proportional to 72,130.58, 99,421.25 and 48,248.66 is: 66,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,130.58 : 99,421.25 = 48,248.66 : x
  2. Step 2: Convert to fraction form
    72,130.58/99,421.25 = 48,248.66/x
  3. Step 3: Cross multiply
    72,130.58x = 99,421.25 × 48,248.66
  4. Step 4: Simplify right side
    72,130.58x = 4,796,942,088.03
  5. Step 5: Solve for x
    x = 4,796,942,088.03/72,130.58
  6. Step 6: Final answer
    x = 66,503.58

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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.