Home / 72,130.08-99,420.56-48,248.16

Finding the Fourth Proportional to 72,130.08, 99,420.56 and 48,248.16

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Solution

The fourth proportional to 72,130.08, 99,420.56 and 48,248.16 is: 66,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,130.08 : 99,420.56 = 48,248.16 : x
  2. Step 2: Convert to fraction form
    72,130.08/99,420.56 = 48,248.16/x
  3. Step 3: Cross multiply
    72,130.08x = 99,420.56 × 48,248.16
  4. Step 4: Simplify right side
    72,130.08x = 4,796,859,086.17
  5. Step 5: Solve for x
    x = 4,796,859,086.17/72,130.08
  6. Step 6: Final answer
    x = 66,502.89

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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.