Home / 90,191.04-124,501.98-56,216.45

Finding the Fourth Proportional to 90,191.04, 124,501.98 and 56,216.45

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Solution

The fourth proportional to 90,191.04, 124,501.98 and 56,216.45 is: 77,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,191.04 : 124,501.98 = 56,216.45 : x
  2. Step 2: Convert to fraction form
    90,191.04/124,501.98 = 56,216.45/x
  3. Step 3: Cross multiply
    90,191.04x = 124,501.98 × 56,216.45
  4. Step 4: Simplify right side
    90,191.04x = 6,999,059,052.49
  5. Step 5: Solve for x
    x = 6,999,059,052.49/90,191.04
  6. Step 6: Final answer
    x = 77,602.60

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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.