Home / 86,549.49-129,060.63-83,465.82

Finding the Fourth Proportional to 86,549.49, 129,060.63 and 83,465.82

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Solution

The fourth proportional to 86,549.49, 129,060.63 and 83,465.82 is: 124,462.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,549.49 : 129,060.63 = 83,465.82 : x
  2. Step 2: Convert to fraction form
    86,549.49/129,060.63 = 83,465.82/x
  3. Step 3: Cross multiply
    86,549.49x = 129,060.63 × 83,465.82
  4. Step 4: Simplify right side
    86,549.49x = 10,772,151,312.67
  5. Step 5: Solve for x
    x = 10,772,151,312.67/86,549.49
  6. Step 6: Final answer
    x = 124,462.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.